Backport os_getversion from premake4.4-beta4 and extend it to support
POSIX-compilant systems.
Add some missing newlines at the end of file as these cause warnings on
OpenBSD.
Update the config paths.
This was SVN commit r11970.
Adds BSD sysdep.
Adds support for MAKE variable, overriding make command in our build
scripts.
Fixes more files not ending with newline.
This was SVN commit r10994.