Fremantle fixes
Request depth buffer on Maemo/MeeGo
Re-enable hooking of sscanf
Fremantle: Only use non-v7a armeabi libs
New support module: Petals Redux
apkenv 42.7.0
Update Harmattan packaging
debug/wrappers: Link wrapper code directly to apkenv

Instead of compiling the wrappers as separate units, built them
into the main binary and use the functions directly as data (with
the data fields found by the first occurence of 0xFFFFFFFF, which
is not a valid ARM instruction).
Cleanup build system and directory structure
Convenience function: jnienv_find_native_method
Prefix JNIEnv overrides so they don't collide with apkenv symbols
Accelerometer abstraction; let platform plugin provide accelerometer

Make sure that no module links against SDL for joystick access.
Audio abstraction
Mixer abstraction. Fixes #39

Most modules ported, some still missing
Fix compile with zlib-1.2.7, libpng-1.5.15, libjpeg-turbo-1.3.0; Fix compile in debug mode (openframeworks was broken); add x11 platform; add config.