encoding: add CP-1256 encoding support (Arabic)

(integrated from komodo (trunk) change 85286 by toddw)

git-svn-id: http://svn.openkomodo.com/repos/openkomodo/trunk@14368 b87d16e7-d29f-4ee1-b5ec-817d645d335f
globals: add encoding services to list of komodo services

(integrated from komodo (trunk) change 85288 by toddw)

git-svn-id: http://svn.openkomodo.com/repos/openkomodo/trunk@14370 b87d16e7-d29f-4ee1-b5ec-817d645d335f