Vim: add dispatch.vim

  https://github.com/tpope/vim-dispatch
  http://vimeo.com/tpope/vim-dispatch-teaser

Signed-off-by: Wincent Colaiuta <win@wincent.com>
Sh*: overwrite old terminfo entries

After a few days of testing this is stable enough to "merge". This means
I can connect to other hosts and won't have to worry about warnings
that the "terminal is not fully functional" (because the remote hosts
naturally don't recognize my screen-256color-italic TERM type etc).

Added instructions on how to backup and sanity-check the generated
files.

Signed-off-by: Wincent Colaiuta <win@wincent.com>