Changed the contribute button for central Landing Page.

The button used to redirect to GitHub, but now goes to the Development
page of the KA Lite Wiki.
Updated Contribute section text to reflect new ways to contribute.

Now above the contribute button it suggest users to develop, translate,
or seed.
Added social-follow buttons to central landing page.

Previously there were only social-sharing buttons, now social-follow
buttons have been added to the footer.
Changed langselect block name to footerleft for efficiency of use.

Previously there was a langselect block used for the distributed
server, and there was a need to place something in the same spot
on the central server. Therefore it was necessary to make the block
more general, so it was changed to footerleft.
Merge branch 'develop' of github.com:jamalex/ka-lite into develop
Relegating social-follow buttons to landing page

The social buttons were causing trouble on other pages,
so they have been moved to the landing page only.
Merge branch 'develop' of github.com:jamalex/ka-lite into develop
Removed files for old flvplayer, as it's no longer used.
Updated README with links to new wiki.
Updated link in README
Merge branch 'videojs' into develop

Conflicts:
	README.md
Listing of existing users.
Merge branch 'develop' of github.com:jamalex/ka-lite into develop
Small fix on userlist view.
First pass, working userlist.
Userlist Styling updates. Pagination fully functional.
User management system at /userlist:
Move users to different group
Remove users from current group
Delete users
Select all/none + checkbox per user
Userlist Bug fix.

Successful completion of actions is no longer reliant on a race condition.
Adding script for dubbed video mapping into utils/.
Commited my youtube-dl script before pulling.

Merge branch 'develop' of github.com:jamalex/ka-lite into develop