prepare for next development iteration
CRAFTERCMS-563: disabling commenting for user's without the necessary permissions
Template updates
* likes, dislikes, unlikes, undo dislike
* temporarily remove unsupported UI trash
* adding class to social bar control element li
* Style adjustments and fixes
* Rich text editor content styles
* Component updates
* Base controller adjustments
* Models adjusted
* View adjustments
* Updates to index.html
Merge pull request #109 from cortiz/2.3.x

Fix CRAFTERCMS-577
Fix CRAFTERCMS-560
See issue for further instructions
Fix CRAFTERCMS-566
Fix the lock in user when unlike/undislike
Fix CRAFTERCMS-577
SOCIAL_AUTHOR cannot attach files to discussion
Merge pull request #110 from cortiz/master

FowardPort Fixes form 2.3.x branch
Merge pull request #107 from rart/master

Updates + CRAFTERCMS-563
Backport Commit e29c63734f8b4efdcb0004f110211c7597208434 to 2.3.x branch