Blender Git Loki

SCons updates
* Added the following flags to config.opts:
- PYTHON_LINKFLAGS
- PLATFORM_LIBS
- PLATFORM_LIBPATH
- PLATFORM_LINKFLAGS
Backup your original config.opts file and run scons again to get these new
options.
* Use freetype-config instead of pkg-config for determining the freetype2
flags.
* The new PYTHON_LINKFLAGS now enable the dynamic linking on Linux and
possibly other platforms as well. This should resolve all linking problems
reported to the mailing lists. (At least for Linux, I can't test other
platforms).