Set all application fields as mandatory

All fields in the award application are set as mandatory.
Changed 'Save to draft' icon

The icon for 'Save to draft' on the FacultyApply page is now a floppy
disk.
Fixed javascript bug

Fixes #42.
Changed datepickers

The AdminDeadlines page now uses jQuery based datepickers which look much
better than the C# datepickers and can be centered in their parent.
Merge pull request #43 from tehcurrent/master

Moved delete buttons in user management pages

Closes #32.
Closes #33.