DFS AAP Conference

Invalid date

*Changed Banner on room to "No Notes Yet"
*Fixed a bug where poll doesn't scroll if each item is bigger than the screen
*Hides profile pictures if one is not set
*Refactored Feed's general UI
*Initialise JodaTime properly
*Added loading image placeholder in Content to avoid the page from bouncing back when scrolling up
*Disabled automated capitalising of votebutton
*Updated Grade version