added vim-snipmate

Change-Id: I3a4ea03eeb0c3b70bf3f52f3d37ec2ea2e739eec
updated submodules

Change-Id: Ie4f6564e9de9e33a9b9d1f7ad96514dc3ebb0e1b
updated submodules and added neww eruby text objects

Change-Id: Icc0a306386c7750f0ddf4ca99e263e41ad0e068f