iOS: disable landscape up/down flip, rename Accelerometer sample to Sensors.
Added gyrometer sensor (work in progress)
Paclone: set viewport to retain proper aspect ratio
Experimented with Android GAME_ROTATION_VECTOR sensor
Temp: dummy screenshot for sensors sample
trigger travis ci
Initial emscripten cross-compiling support on Windows
Update BUILD.md
Use official emscripten SDK on all host platforms
Minor emscripten SDK setup fixes on Windows
Started with a no-standalone-toolchain android toolchain file (doesn't work yet)
Fixed Android toolchain file to not require standalone NDK toolchain (currently only OSX)
Android cross-compiling under Linux
Bugfix in paclone sprite renderer for rectangular sprite sheet
Paclone: started with monster house behaviour
Cleaned up and updated vagrant file
Shader generator fixes:

Bugfix: macros in dependent code blocks were not resolved.

Don't stop on first error.

Print generated shader source on error.
Paclone: added Timothy Lottes' CRT posteffect shader
Followup bugfix in shader code generator, now didn't abort at all on errors
Paclone tweaks