Fix 'v' alias (rev-list instead of revlist)

The command is:
    git rev-list HEAD -1
Not:
    git revlist HEAD -1
Remove '| ®om' from mail username

Keep only "Romain Vimont", there is no need for the pseudo.
Remove '| ®om' from git username
cscope for vim

cscope_maps.vim comes from:
  http://cscope.sourceforge.net/cscope_vim_tutorial.html
Add colorschemes for vim