magit/magit — pull request #859 by acple (2013-09-06 05:29:33+00:00)
Title: display HEAD position label in *magit-log*

I want to show HEAD position in \*magit-log\*.

I changed,
rewrite function `magit-ref-get-label-color`, adapt to display `HEAD` label.
add `HEAD` label face definition.