Moved common android stuff to textadventure_common namespace
Copied activity to common activity.java
Abstracted R in common activity
Made app1 activity extend the common activity
Specific activity now extends common activity and provides resource access methods
Added activity for app2 and supporting build script changes
Updated .gitignore to exclude app specific source copied from config directory
Moving Activity specific tests to config area and monkey patching package names
Adding app specific src and test directories to .gitignore since they are copiied from config
Restricted unit test run targets to files with Tests.java at the end
Tidied up prepare.sh a bit
Updated backlog task for activity acceptance tests being shared between apps
Updated map with proof of concept sketch from Charlie