Add bzip2-1.0.6
Add curl-7.29.0
Add libiconv-1.14
Add lua-5.2.1
Add miniupnpc-1.7
Support bzip2 compilation for *-w64-mingw32
Support curl compilation for *-w64-mingw32
Support libiconv compilation for *-w64-mingw32
Support lua5.2 compilation for *-w64-mingw32
Support miniupnpc compilation for *-w64-mingw32