Basic functionality working
Merge pull request #4 from jcerise/master

Authorizaiton setup
Merge pull request #5 from jcerise/master

Added some finishing touches to the authorization system
New class for UnavailableRoom
More evolution...
Basic logic working. Need to reorganize code a bit, and then generate the SpaceTimes.
First try at generate_spacetimes
Almost there...
Initialization seems to be working correctly as does /simple/display
Cleaned up vestigial files.
Changed "convener" to a link to :user.
Installed StickyTableHeaders.js, demo on /simple/display
Made "locations" array a class field of RoomSessions
Moved "locations" array to SpaceTime class
Rough start on board layout at /board/show
Added a unique ID on each spacetime row in simple/display that is the spacetime ID, this will
be necessary to associate a new topic with a spacetime.
Using group_by to order by time slot & room
Explicit selection of rooms to ensure proper order via @rooms
Day/time in first column & showing available/unavailable. Still need to fix "exclusive" display.
First cut at color coding. For some reason the colors alternate and don't display correctly.