switch to lzma for installer (somewhat untested); rename SizeT => SizeTmpl for compat with LzmaDec.h
move VS2008 project file to vs, remove VS2008 installer project (included in main project), add LZMA to AUTHORS and versions.txt, checkin lzma.exe (fixes issue 2053)
make compilation paths again relative to .vcproj (fixes double-clicking jumping to the correct file and line in error messages)
write $B instead of $(B) for more concise makefile.deps
handle failure to clone an engine in printing code (fixes issue 2233)