merge default into stable; feature freeze

--HG--
branch : stable
cmake: merge InputFiles and OutputFiles projects into cli project (simplicity)

--HG--
branch : stable
extra : amend_source : 446f1b986363e46e8e188fb878f924945436f2be
convert stdlib.h includes to <cstdlib> to avoid namespace conflicts

--HG--
branch : stable
ipfilter: remove unused maxVal variable

--HG--
branch : stable
encoder: replace long with UInt
cmake: rename x265 project to cli, force output name to x265. use libx265.a
Merge with stable
compress: remove unnecessary line (GCC warning)
cmake: merge fixup
cmake: generate libx265 unconditionally