add command to ignore changes to file temporarily

I noticed that the function ``work_in_progress``, which is used in the "gallois"-theme, would print ``fatal: bad default revision 'HEAD'`` in a new folder after ``git init``.

This is the fix.

Signed-off-by: Gaetan Semet <gaetan@xeberon.net>

For the lazy and forgetful. Don't worry, a bang is fine in an alias and completion.

Allows to view commit history in extended way

Instead of git fetch && git rebase.

* glo := git log --oneline
* glp := git log --pretty=arg