(Only the first 10 of 1081 ports in this commit are shown above. )
Update the default version of GCC used in the Ports Collection from
GCC 4.6.4 to GCC 4.7.3. This entails updating the lang/gcc port as
well as changing the default in Mk/bsd.default-versions.mk.
Part II, Bump PORTREVISIONs.
Supported by: Christoph Moench-Tegeder <email@example.com> (fixing many ports)
Tested by: bdrewery (two -exp runs)