fix: Key Bindings: Vi: Added scroll commands zz z. and z-
http://bugs.activestate.com/show_bug.cgi?id=69495
rn=

(integrated from komodo (trunk) change 84342 by toddw)

git-svn-id: http://svn.openkomodo.com/repos/openkomodo/trunk@14296 b87d16e7-d29f-4ee1-b5ec-817d645d335f