* docs - add information on upgrading to PostGIS 2.5.4

Upgrade instructions 2.1.5 to different versions of 2.5.4

* docs - upgrade to PostGIS 2.5.4 review comments

* docs - more review comment updates.
reorder upgrade sections.
clarify removing PostGIS package, is for removing the gppkg

* docs - minor edit

* docs - review updates - more emphasis on removing PostGIS from a database deleting objects.
-Create separate paragraph in Upgrading section.
-Add warning in Removing PostGIS section

* docs - minor review comment update

* small edits
Co-authored-by: NDavid Yozie <dyozie@pivotal.io>

* docs - update postGIS 2.5.4 docs

Updates for Greenplum PostGIS 2.5.4 v2

--Add list of PostGIS extensions
--Add support for PostGIS TIGER geocoder, address standardizer and address rules files.
--Update install/uninstall instructions to use CREATE EXTENSION command
--Remove postgis_manager.sh script
--Remove PostGIS Raster limitation.

* docs updated PostGIS 2.5.4 docs based on review comments.

* docs - removed postgis_raster extension.

* docs - review comment updates  -Added section for installing the PostGIS package
-Updated section on removing PostGIS package
-Fix typos.

* docs - updated platform requirements for PostGIS 2.5.4 v2
-also removed "beta" from GreenplumR

* clarifying pg_upgrade note

* graph edits

* graph analytics updates

* menu edits and code spacing

* graph further edits

* insert links for modules

* docs - document the new plcontainer --use_local_copy option

* add more words around when to use the option
Co-authored-by: NDavid Yozie <dyozie@pivotal.io>

* docs - updates for PostGIS 2.5.4

-Updated version 2.1.5 -> 2.5.4
-Updated references to PostGIS topics
-Removed geometry and geography limitation
-Added enhancement for postgis_manager.sh script - support installing PostGIS in a non-default schema
-Added examples of updating postgis.enable_outdb_rasters and postgis.gdal_enabled_drivers for a GPDB session
-Remove ANALYZE limitation for user-defined data types
-Added  _postgis_index_extent function is not supported
-Added note: <-> operator returns centroid/centroid distance
-changed name of PostGIS aggregate function ST_MemCollect to ST_Collect

* docs - fix typo

* docs - minor changes to topic hierarchy.

* docs - one more minor hierarchy change.

* docs - update external URLs

* docs - fix typo, minor cleanup

* docs - found strange character

* docs WIP - add some python3 info

* move data type mapping to pl/python page; add more py3 info

* add set-returning function example

* address comments from david

* clarifying pg_upgrade note

* review edits

* some small edits

* fixing menu

* codeblocks alignment

* further code alignment
Co-authored-by: NDavid Yozie <dyozie@pivotal.io>

* Docs - updates for PL/Container 3 beta

* Update to account for beta being available for Ubuntu

* Update install, uninstall tasks for 3 Beta

* Qualify r image as beta

* docs - initial doc content for Greenplum R client beta

* use correct download fname, qualify version as Beta

* add more functions to the table, move html help info

* clarifying pg_upgrade note

* first edits

* edits for menu and content

* menu changes

* further funtion edits

* new file for config reference

* editing links and configuration file reference

* fixing references

* further link edits

* move of logging section

* arranging sections

* fixing references

* intro edits

* small edit

* small improvements

* docs - fix some xrefs and conditionalize

* update a link

This fixes multiple occurrences of duplicated words in sentences, like
"the the" and "is is" etc.
Reviewed-by: NMel Kiyama <mkiyama@pivotal.io>
Reviewed-by: NHeikki Linnakangas <hlinnakangas@pivotal.io>

* Add gpss link

* Correct madlib typo

* Remove broken link (unneeded)

* Fix link to gptext/fts comparison

Squashed commit of the following

commit e76c278c96f49f21ee0464097e55ff7d6fc2568e
Merge: 9a14adba 98a67e1197
Author: dyozie <dyozie@pivotal.io>
Date:   Mon Feb 3 14:01:01 2020 -0800

    Merge branch 'feature/docs-analytics-2' of git://github.com/lenapivotal/gpdb into lenapivotal-feature/docs-analytics-2

commit 98a67e1197d0156e791739ba4239ac9fd34c3346
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Thu Jan 23 13:38:03 2020 -0800

    edits from most recent review

commit 0b203c8a1f33293cc8276b81c8ef8b6293178d27
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Mon Jan 13 16:16:05 2020 -0800

    link fixes

commit 388d3f9499f54174a48e448ab9c7e84865bd217a
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Mon Jan 13 15:46:15 2020 -0800

    changes for 6.x -> 7.0 and link fixes

commit 57eaafb142badb685ade787a7e8a3b621289c125
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Mon Jan 13 14:14:18 2020 -0800

    fixing gp version

commit cb4be6ade0319312a5c9cc9fd49c6c321c16981f
Merge: 944bb49b71 5e98376148
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Mon Jan 13 13:57:59 2020 -0800

    resolving conficts

commit 944bb49b71bcf38803336662e081c628352cb53e
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Mon Jan 6 14:36:17 2020 -0800

    adding menu times

    overview title change

    edits to intro for PL

commit 09c0a07f2cf5a3e62723b024aae812678bd83952
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Fri Dec 27 12:27:44 2019 -0800

    edits from feedback

commit f1ac6bebc07b99dcc61b747723d8dcf79bc7a883
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Fri Dec 13 16:16:25 2019 -0800

    changes for new text.xml page

commit 82221149283732615cd51f0cf0f63b1318a30963
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Wed Dec 11 10:20:52 2019 -0800

    madlib page changes with diagram

commit 4ef989ca69aae6a132c5e6b0ff79ca963b441f45
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Mon Dec 9 16:10:52 2019 -0800

    small edit for DITA format

commit e39cfbfaca820fde9047574f7722bf8d9c63eb60
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Mon Dec 9 14:29:25 2019 -0800

    edits to phase 1 menu

commit 5a88a930240f719755a4c1c535ba3dd726f9241e
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Mon Dec 9 13:56:00 2019 -0800

    edits to MADlib overview

commit b3da2616e48ab840cbcde5002520b33de35286f7
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Mon Nov 11 15:07:37 2019 -0800

    analytics edits

commit ccdbdcb0fe34216e6ad5fbde9594e408ac470636
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Mon Nov 11 14:10:51 2019 -0800

    further edits to overview page

commit db3679cd2ff1cf5a944518be06dec1526e208d8b
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Mon Nov 4 14:46:05 2019 -0800

    edits to gp analytics

commit 54679c104ab5823acca6a8f11a934136f51fe3c3
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Thu Oct 31 16:34:02 2019 -0700

    changes to analytics subject:

commit 40c4e35e22529ddd13e5e5f2fbe1c946c5581fd1
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Thu Oct 31 16:32:00 2019 -0700

    updates to analytics work

commit caa37b01e869b106c6c2d52feecf4614d169f6a9
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Thu Oct 31 14:42:57 2019 -0700

    further edits to analytics

commit 318a742a17f405725848670f89cccec2fbda55ba
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Fri Oct 25 15:38:32 2019 -0700

    menu order change

commit a01c62da78154e45873dc31b8f84e6ac0dac337e
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Fri Oct 25 10:54:32 2019 -0700

    added graphics folder for analytics

commit c76c1b9db711d3c14d2779031c7a7e4580e82016
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Thu Oct 24 16:31:02 2019 -0700

    fixing xml error and image location/size

commit 67c7d37f909f65768c3473ec943f77697a4f5e80
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Thu Oct 24 16:09:09 2019 -0700

    ditamaps and erb edits for menus

commit b6be012de62fffc442647b4469ed8ac81e1da432
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Thu Oct 24 13:41:23 2019 -0700

    changes relating to ditamaps

commit c3ac846df5dfba0fd2a77b99b3eeede0fd168f13
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Thu Oct 24 08:34:46 2019 -0700

    adding new overview page

commit a6c37d7a709c2907ac504e40eb81b32427ddae79
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Wed Oct 23 15:12:43 2019 -0700

    testing image insert

commit 3045f7d8164df04ceb133973616d4ff45f06d5d2
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Wed Oct 23 14:46:06 2019 -0700

    fixes to ref links

commit 5693353a94878a65fec8d0f3c4458afbd47b8fc5
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Wed Oct 23 14:38:22 2019 -0700

    fixes for broken ref links

commit d1b389f87a20d3a7eba22d97d59e45c1fc4021f1
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Tue Oct 22 16:36:58 2019 -0700

    changes to analytics section

commit 8c6a9b41f4228cdeba9a00389766c82a00effae8
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Tue Oct 22 16:08:24 2019 -0700

    initial reorg of analytics work

commit 5e983761481b49c58a1025fc3a394e3b8ab3fa3a
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Mon Jan 6 14:36:17 2020 -0800

    adding menu times

    overview title change

    edits to intro for PL

commit e94ffe63c665b3badb09ebd08bcd12605701ed75
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Fri Dec 27 12:27:44 2019 -0800

    edits from feedback

commit 3060c37ab2c5aaa94e72e5f2df12e2b6089d32d1
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Fri Dec 13 16:16:25 2019 -0800

    changes for new text.xml page

commit 43c0cbf4ad932c7b4b72a21de004a46b3e7abfd5
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Wed Dec 11 10:20:52 2019 -0800

    madlib page changes with diagram

commit 57d06c23097607c1507d5908bd706a38b4de1b46
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Mon Dec 9 16:10:52 2019 -0800

    small edit for DITA format

commit 2e5bf3be7f479a5fe5921b91b0aaaa8ed25d255b
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Mon Dec 9 14:29:25 2019 -0800

    edits to phase 1 menu

commit 75a33778ee4dc6f013d8cd1e8c8fbb0cd4b0b083
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Mon Dec 9 13:56:00 2019 -0800

    edits to MADlib overview

commit da1301b13837f7bbac96e139a37a06b0c693f0be
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Mon Nov 11 15:07:37 2019 -0800

    analytics edits

commit 5b98b31fcac8a2905b4c2cc6d30dbed41e04345e
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Mon Nov 11 14:10:51 2019 -0800

    further edits to overview page

commit 9d68eea525c3f07af3bb4269371ba54178204906
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Mon Nov 4 14:46:05 2019 -0800

    edits to gp analytics

commit 8eb2988d6b8d5027dba247ada3dd3cc58ce97f67
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Thu Oct 31 16:34:02 2019 -0700

    changes to analytics subject:

commit 1c1fdffabb0036413509084afe4caa2e58cec110
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Thu Oct 31 16:32:00 2019 -0700

    updates to analytics work

commit 14bfaa14ca9c3e5873522a2cd0a485ed291698b0
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Thu Oct 31 14:42:57 2019 -0700

    further edits to analytics

commit adc11169f1dcac9ab92f9d5ec1dfbd080fac6df3
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Fri Oct 25 15:38:32 2019 -0700

    menu order change

commit 84dbee9d8de0d245372c8858254b0eab3d8fa0b3
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Fri Oct 25 10:54:32 2019 -0700

    added graphics folder for analytics

commit bd66357bd577eb967b765a3740db145ce17a44cd
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Thu Oct 24 16:31:02 2019 -0700

    fixing xml error and image location/size

commit 8836b5f9dd262d06582497be398c91d9385ccb1b
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Thu Oct 24 16:09:09 2019 -0700

    ditamaps and erb edits for menus

commit 3472e6cc9dae118239651bd9447fcc996b8c52e7
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Thu Oct 24 13:41:23 2019 -0700

    changes relating to ditamaps

commit 7df800760b834bcbd37746f2248e7696dcf497a9
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Thu Oct 24 08:34:46 2019 -0700

    adding new overview page

commit df01bfa4f9bb18c99bbbf93b089c27b69e953ad4
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Wed Oct 23 15:12:43 2019 -0700

    testing image insert

commit f34ca13d9842f844af2fb06846981bea7c63ff9b
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Wed Oct 23 14:46:06 2019 -0700

    fixes to ref links

commit 17d98775fb142efc760c404a402d85493bf9bf0b
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Wed Oct 23 14:38:22 2019 -0700

    fixes for broken ref links

commit 9d35b209e1bae9933fd85cec8df7b4b6f73036ec
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Tue Oct 22 16:36:58 2019 -0700

    changes to analytics section

commit 7e5de7a01d506158ef106a494f2fdfe679cb25f5
Author: Lena Hunter <lhunter@pivotal.io>
Date:   Tue Oct 22 16:08:24 2019 -0700

    initial reorg of analytics work