git: subrm a.vim
remove cabbrev git Git.
vim: add new bundles 'sneak' and 'dbext'
submod: remove 4 rarely used bundles.
Rm 2 submods to mod origin repo.
Subs: re-sub bundles to actual orig repos.
Sub: add vim-support bundle
git: rm submod vim/bundle/bash-support.vim
sub: re-sub bash-support.vim
Sub: add vim-support bundle