first cut make room filtering work without livesearch
make room LIs have size > 0 so we can use :visible on liststate
use noncoercing equality check for list empty item
fix ie9 icons on rooms in lobby
make javascript treat room names as strings when comparing them
use camelcase for accessing data attribute
improvements to filtering / ordering in lobby - use uppercase, localecompare, order with closed then count, insert room without reordering everything, update count text when users enter/leave rooms, move the load more rooms element outside the ul and show/hide rather than hiding/reappending and showing, default room lists to be hidden for perf.
noncoerce equality sqap
use uppercase in room cache, support adding / updating rooms in the private list in the lobby.
DRY on filter function, apply filter to newly added rooms
make leaving the room return the right occupant count
factor out and explain the method that will find the next room list element
use uppercase for login command and for tab comparison.  Only remaining lowercase is the room ids, which correspond to css classes
don't hide room list sections
Merge pull request #825 from cmaish/room-filtering

Various small improvements to room filtering