Merge pull request #343 from Paerhati/homepagedesign

Added a comment of where the youtube embedder should throw and error for...
fixed the disconnected modal in hangout facilitator
Merge pull request #344 from Paerhati/homepagedesign

Modified the chat message panel body which is scrollable to adhere to the tests.
test fix for Creates an event via admin page
test fix for identity dropdown label
fixing some tests
Switch bootstrap to requirejs
added enqueue button in the admin ui
ui changes for remove video from previous videos list