Update to 0.6.3.


git-svn-id: svn+ssh://svn.freebsd.org/ports/head@372516 35697150-7ecd-e111-bb59-0022644237b5
audio/zynaddsubfx: pass maintainership to Hans Petter


git-svn-id: svn+ssh://svn.freebsd.org/ports/head@372517 35697150-7ecd-e111-bb59-0022644237b5