r128
Makefile : added capability to install libraries Modified Directory tree, to better separate libraries from programs.
Added : arm cross-compilation test
lz4 cli supports frame content size
Improved sparse file support
scan-build tests
Updated datagen (can create sparse files)
Improved sparse files support
Fixed : Visual compilation
Updated lz4io sparse file support (alignment properties)
Updates tests & Man pages
Updated man page : "--[no-]X"
Updated long commands, with reverse "--no-" variants