rhg: Sort `rhg status` output correctly
* The relative order of states is:
modified, added, removed, deleted, unknown, ignored, clean
* Files in the same state should be sorted by name, regardless of whether
or not the were in "unsure" state based on metadata alone.
Differential Revision: https://phab.mercurial-scm.org/D10765
lib - sys sys
mercurial - sys sys
hgrc.d - sys sys
9diff.rc - sys sys
factotum.rc - sys sys
rc - sys sys
bin - sys sys
9diff - sys sys
hg - sys sys
sys - sys sys
lib - sys sys
python - sys sys
lib - sys sys
python2.5 - sys sys
site-packages - sys sys
hgext - sys sys
+ - sys sys
mercurial - sys sys
+ - sys sys
mercurial-VERSION-py2.5.egg-info - sys sys
src - sys sys
cmd - sys sys
hg - sys sys
+ - sys sys