bash -- avoid a warning when starting gvim from cmdline
vim -- ultisnips bumped to 2.2

Remote url moved to the clone git://github.com/vim-scripts/UltiSnips.git
vim -- pyflakes drop-in replaced with submodule

Dropped in at commit 28747f3a with pyflakes 0.6.1.
Added README
Added links to go configuration

All the symlinks point to the ``vim/go`` symlink: it's enought to update it
(e.g. setting somewhere else than the ``/usr/lib/go/misc/vim/`` I have
 on Ubuntu) to update all.
vim -- 2 tab indenting for xml too