update INSTALL and the makefile
makefile fix
fixes
sync
do not build enet static library, link the object files directly with the rest
set pagezero_size and image_base only on 64bit on mac
initial support for msys and cygwin in the makefile
support for CFLAGS, CXXFLAGS, LDFLAGS
tweaks
remove some leftover makefile code
automated enet cflags checks
fix windows detection
turn some assignments into immediate ones to speed stuff up
check for __len overloading capabilities
initial, experimental support for cmake builds
fix entity tag handling
fix a segfault
sync (breaks player model compat: add mdlyaw 90 into the cfg for a fix)
install target support in cmake based builds
better OS handling in cmake - support for crosscompiling