added endpoint for overview
Merge branch 'master' of https://github.com/ucam-cl-dtg/urop-2014-ticking-ui
Copied more of Katie's old code.
Using moments for date arithmetic in Katie's.
Using durationInMinutes (duration was undefined).
Date-arithmetic in "is slot current?".
Another date-arithmetic error.
Current slots are not in the past now.
Merge branch 'time-zone'

Got the static version of Katie's current slot working.
Merge branch 'master' into demo-raven

Conflicts:
	ETick/WebContent/elements/overview/overview-card.html