Resolves partly issue #43.

Stages are no more hardcoded. There is default json file,
which is parsed to the database. The database is updated
periodically (like other tables) from the server side.
Removed redundant StageType.
Oops.. almost saved wrong Stage values to db.
Removed wrong log message.
Fixed comments given to PR.
Fixed StageDAO server queries to really work.
Work-around the #77. Add primary key again.
Point to new API locations instead of stages.
Merge branch 'issue-43_configurable-stages' of https://github.com/jesseniemisto/festapp-android into jesseniemisto-issue-43_configurable-stages
added stage update to force fetch
Merge branch 'jesseniemisto-issue-43_configurable-stages'

Conflicts:
	src/com/futurice/festapp/dao/GigDAO.java
Merge branch 'master' of https://github.com/futurice/festapp-android into map_oom_fix