Prefer external storage over internal
Target Android 4.2 (API17)
Enable proguard... I think?
Add proguard optimisations
Delet some old images and fix Lint error
Rename CorsixTHApplication to match other classes
Delete old file
Fix a small typo
Only use BugSense if not in debug mode
Apply GCC optimizations
Update CorsixTH sources
Fix missing configuration option
Update CorsixTH scripts
Update freetype
Fix a potential NPE if ext storage is unavailable.

Also refactor the application references in the activities. Still needs
further work because it's very untidy at the moment.
Bring back LuaJIT

Don't include it yet though.
Pass Configuration object to initialiser
Update configuration to be read by c/Lua
Update Spanish translations (miguelkill)
Update Hungarian translations (hun_gery)