stack: order the adjective of changeset
The new order give more interesting result:
* base current
* base unstable
* current unstable
It seems more harmonious this way. Base seems the most core and immutable
adjective describing the element. Then current is a volatile but important one.
Finally, unstable is less information than current, so it goes last.
syntax: re
/figures/[^/]+\.png$
^html/
\.pyc$
~$
\.swp$
\.orig$
\.rej$
\.err$
^tests/easy_run.sh$
^build/
^dist/
^MANIFEST$
^docs/tutorials/.*\.rst$
\.ico$
tests/\.testtimes