Use "meta templates" that ate actually Bash scripts.

Useful in repos with more users and especially in those with abundance
of tags.

Note to self: TODO: merge with other modes

--verbose never hurts; even for trivial changes it's good to check for
commit creep.

Use 'r' for typos since it's typo of 't'.

Git will add the actual diff to the message displayed in the editor.
This allows to consult better what was actually done and to make use of
code completion features like that of Vim.

Note that with --amend (`cma` alias) the behavior is that the final
diff is shown, i.e. not just the amendment.

Also it's intentionally not used by default message aliases as these
are intended for express and/or ad-hoc commits (so far).

The latter is alternative for `gitka` bash alias

Thanks to [this question on SO][1].

  [1]: http://stackoverflow.com/questions/7534184/git-alias-multiple-commands-and-parameters