Added delete extension button and stub api call.
Merge commit.
Merge branch 'master' of github.com:ucam-cl-dtg/urop-2014-ticking-ui
More code to delete extensions. (No API).
Hiding upcoming slots till ajax loaded.
Added javax servlet as dependency
Hiding dashboard untill stuff has loaded.
Merge branch 'master' of github.com:ucam-cl-dtg/urop-2014-ticking-ui
Working on deleting extensions.
Ignore slotsi n the past in determining whether a user is signed up for a tick already
Cosmetic changes to edit tick textarea. Added placeholder.
Merge branch 'master' into BugFixes

Conflicts:
	ETick/WebContent/elements/dashboard.html