Update to the 20140917 snapshot of GCC 4.9.2.


git-svn-id: svn+ssh://svn.freebsd.org/ports/head@368635 35697150-7ecd-e111-bb59-0022644237b5
Update to version 0.5.6


git-svn-id: svn+ssh://svn.freebsd.org/ports/head@368636 35697150-7ecd-e111-bb59-0022644237b5
Update to git20140902.

PR:		ports/193247
Submitted by:	maintainer


git-svn-id: svn+ssh://svn.freebsd.org/ports/head@368637 35697150-7ecd-e111-bb59-0022644237b5