gpmigrator and gpmigrator_mirror are older utilities
to help the upgrade from 4.2 -> 4.3.
This is no longer necessary; we are removing all
related gpmigrator calls and mentions.

* Remove gpmigrator from travis
* Remove upgrade test
Signed-off-by: NChumki Roy <croy@pivotal.io>

`gpinitsystem`, `gpstart` and `gpstop` had different prompting before:

$ gpinitsystem -c gpinitsystem_config 
...
Continue with Greenplum creation **Yy/Nn>**
n
...

$ gpstart
...

Continue with Greenplum instance startup **Yy|Nn (default=N):**
**>** n
...

$ gpstop
...

Continue with Greenplum instance shutdown **Yy|Nn (default=N):**
**>** n
...

This commit makes them consistent:

$ gpinitsystem -c gpinitsystem_config 
...

Continue with Greenplum creation Yy|Nn (default=N):
> n

This removes all utilities which are known to be deprecated from
gpMgmt and it also clears out any command line switches marked as
deprecated along with code marked deprecated. It also removes the
leftovers from previously removed utilities such as gpsuspend and
gpcheck_hostdump etc and fixes mentions of renamed utilities.

There should be no functional change from this commit as the only
removed utils have been marked deprecated for some time.

This will no longer spill logfiles from the demo cluster into
the users ~/gpAdminLogs directory. Also it makes it easier to
identify which logfile was created by the last regression test run.

Closes #689
Closes #523

In gpconfigurenewsegment, the class ConfExpSegCmd inherits from the class Command.
Command uses a variable of type ExecutionContext which was updated back in December
2011 to include passing the Command object itself to the execute(), interrupt(), and
cancel() ExecutionContext methods. The author of that patch did not update the
gpconfigurenewsegment.ConfExpSegCmd class which overrides those methods. It doesn't
make sense to even override them in the first place so they should just be removed.

Along the way, fix trailing tabs and split a long error
message into two lines.

This will fix #524

* drop leaked schemas before running gpcheckcat tests

  1. drop any leaked/orphaned schemas before running any of the gpcheckcat tests
  2. add unit and behave tests
  3. move gpcheckcat from gpMgmt/bin/lib to gpMgmt/bin
  4. misc refactoring

orphan/leaked schemas are temp schemas that are not associated with any session id.
There used to be a check for leaked temp schemas in gpcheckcat
which ended up creating a repair script.

* drop the database at the end of the behave test

* move the gpcheckcat bin to lib symlink before the copy to /Users/nikhilkak/git/gpdb/gpAux/greenplum-db-devel

* fix the if check before symlinking  gpcheckcat from bin to lib

closes #595  

Modifying output of gpcheckcat to include the name of the test on the same line to make grepping easier

The gpssh utility can have issues during the initial ssh connection
step due to different network configurations that may cause delay.
This commit exposes two key pxssh variables, delaybeforesend and
sync_multiplier, into configurables so that users can change them
as needed to ensure their gpssh works as intended in their network.

Authors: Christopher Hajas and Jimmy Yih

Currently to check previous runtimes it takes multiple grep commands
to summarize the log file. This change adds all the information to a
single line making it far easier to check historical runtimes. The
historical runtimes can be used to estimate the required maintenance
window for future runs.

This table is not used anywhere in the code.

cleanup of syntax around inet4 v inet6 parsing to match

changing spacing in piped commands

fixing case semicolons

Adding freebsd IP detection commands

While GNU TAR is used throughout GPDB this definition doesn't seem
to be used so avoid spending cycles performing it.

when the add-on config file contains GUCs which exist in postgresql.conf.sample,
and are commented out(e.g, #max_resource_queues), these GUC settings would not
take effect because incorrect posgresql.conf would be generated by gpinitsystem.

README.debian to remove "ed" dependency.

Replace "ed" with "sed" in ED_PG_CONF function.  ED_PG_CONF and
supporting variables are renamed with "SED" as needed.

Fix gpssh issues by upgrading pexpect/pxssh to latest stable version 3.3. Cherrypicked pxssh v4.0 ssh options into this upgrade too. Made ssh_utils.py pxssh initial connection validations threaded to reduce overhead of new pxssh validation function.

The issue is pxssh and ssh related:
http://pexpect.readthedocs.org/en/latest/commonissues.html#timing-issue-with-send-and-sendline