Add plugin:list command
Fix #1677 : Avoid migration failure
Fix #1673 : Avoid interpolation for image and videos
Add json output to plugins:list command
Merge pull request #904 from romainneutron/plugins-list

[3.8] Plugins list
Merge pull request #905 from romainneutron/fix-1677

[3.8] Fix #1677 : Avoid migration failure
Merge pull request #906 from romainneutron/fix-1673

[3.8] Fix #1673 : Avoid interpolation for image and videos
Merge branch '3.8'

Conflicts:
	bin/console
	composer.lock
Fix composer.lock
Add task manager logs configuration
Bump to version 3.8.3-alpha.5
Fix #1660 video scale preview on ipad in lightbox
Fix #1662 : Abort plugin uninstall in case the plugin is not present
Fix #1663 : Remove plugin configuration on uninstall
Update task manager log levels
Move jquery context menu files to their directory
Fix client template
Pimp error message
Enhance error messages
Fix css themes