Update to webkitgtk-2.6.3.
Fix 'Command Explanations' in Qca-2.1.0 and Midori-0.5.9.

git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk@14891 af4574ff-66df-0310-9fd7-8a98e5e911e0