Android: inherit from SDLActivity instead of re-implementing it.
Update SDL, fix "now" variable to be unsigned long everywhere
- Adds bootstrap utility
- Fixes FileWatcher missing header
- Fixes dependencies installed, tries to install as much as possible as unprivileged user
- Ubuntu Precise and Quantal are now the supported Linux platforms
- OS X Lion and Mountain Lion are now the supported OS X platforms
- Fix Java path search for Android
- Fixed android tool path
- Fixed installed dependencies in bootstrap tool
Fixes for bootstrap script