upstream(lz4-java): check for os.arch that known to allow unaligned memory access and return safe instance for other architectures
upstream(lz4): Large decompression speed improvement for GCC 32-bits. Thanks to Valery Croizier !

upstream(lz4): LZ4HC : Compression Level is now a programmable parameter (CLI from 4 to 9)
upstream(lz4): Version number into lz4.h (suggested by Francesc Alted)
lz4-java: support for customized compression level.
lz4-java: return null instead of throwing if customized HC compressor construction fails.
lz4-java: amend javadoc for LZ4Factory.highCompressor(int)

cb-plugin: expose ability to set compression level on hc compressor (comp.hc.level)
gui: expose ability to set compression level on hc compressor
Refactor: move Config and Locale class to cb package
global: move version info from Config class to the new PackageInfo class