update compiler settings to LLVM 5.0
return reference to NativeApplication via getDefinition
v4 protocol support (remove heartbeat, send focus state instead)
switch to v4 protocol, add background policy support
FRE 3.9 lib, recompiled windows dll
fix json encoding
1.0.9 compatibility

- Removed ASC1 ANE
- Updated XCode project with LLVM compiler
- Compiled with latest 1.0.9 libraries