Remove room graphic download and display
Implement theme for re:publica 13

This makes all the needed style chages to make this the re:publica 13
branded app.
Update strings from Re:publica to re:publica
Enable to list events by room and add speakers stub

This patch adds a "Rooms" button on the main view which allows the user
to view the events taking place in a particular room for a particilar
day. The day can be chosen from the drop down list at the top.

Also included is a disabled button to show speakers. This will be
enabled soon.
Update about dialog

This commit gets the about dialog to a point where it's close to what is
needed. Might want to add logo or something but it's good enough for
now.
Clean up some versioning issues.

Currently it's only compiling for api version 11. Need to work that out
soon.
Attempt to peg the main view to portriat orientation
Change EVENT back to 'event' after xml fix
Update xml file url and preference key