There is a new widget called `infoshapes`. It support all the features
from the underlay system, but is a lot less intrusive. This allow to
make some code simpler.
This is another step in getting rid of all the hacks.
Lots of things will break, hopefully for the better (eventually)
This commit use new upstream APIs:
* Many cairo paths have been replaced with gears.shape and gears.matrix
This commit add some features:
* Improved border_color support, now available per state
* bg_image support, now available per state
* Mutualize the state setting, remove duplicated code
Regressions:
* The arrow menu background border is off by a pixel
* The layout position problem reported by @mindeunix is now worst.
The positioning algo is full of race conditions and cannot be fixed
without a full rewrite. This commit break more things than it solve
and the code is in the middle of a transition. This will be solved
by future commits addressing the code quality (after the refactoring).
**WARNING**: this break the API
menu.overlay -> menu.draw_overlay
The new "overlay" behave like underlay, but is on top
This commit also add underlay/overlay "align" option and document
the feature properly.