- Remove useless USE_GCC (should fix build where Clang is the default compiler)
- Use new options framework
- Rename CMakeLists' USE_ICONV option to ICONV_LINK
- Update to 4.0.0
- As OpenGL rendering now works, remove the -devel suffix
- Enable staging
- Use new LIB_DEPENDS format
- Add new UPNP option
- Handle -liconv removal on -CURRENT