Bulk removal of map-related code, resources, assets (again)
Merge branch 'DroidconUK2013'

Conflicts:
	android/src/main/java/com/funkyandroid/droidcon/uk/iosched/sync/SyncHelper.java
Merge branch 'DroidconUK2013'
Removed unused MapPropertyHandler class
Fixed potential NPEs in JSON handling
Merge branch 'DroidconUK2013'
Removed MapResponse and sibling classes
Merge pull request #30 from rock3r/remove-map

Remove maps