* Add plugin support for jcli commands

* Move types of config into a new package

* Commit bindata.go

* Fix the package import errors

* Allow sub-command set their own config loading policy

* Add support calculate download link by runtime

* Add support to download a tar type of plugin file

* Add documentation about jcli plugin

* Fix the wrong imports

* Format the code lines

* Format the output of config plugins list

* Package re-order

* Fix the unit test errors

* Add snap yaml file

* Add snapcraft into readme document

* Add more snap info

* Set git ignore for *.snap

* snapcraft can be release

* fix the description in the snapcraft config file

* Add documents for how to download jcli from bintray

* Update the download links

* Adjust the expression

* Make jcli dev image become smaller

* Emable dev branch to trigger github action

* Try to fix no go-bindata

* Fix the description in readme file

* Add other ways to download jcli

* Fix the jcli path under windows

Fixes to the README text and improvements to the English.

* Add badge for godoc

* Change the link format

* Add two badges which are all releases and code size

* Drop the wrong changes

* Add more shield badages

* Add gitter room as a shield badge

* Add more feature description and how to download on the linux os

* Use a simple cmd to download jcli