```
devel/buildbot*: Update to 0.9.11, Add buildbot-grid-view
* Update to buildbot 0.9.11
* Add buildbot-grid-view
* Buildbot 0.9.11 works with Python 3, so remove restriction on Python 2.7 in USES
* Clean up stuff from individual Makefiles that was copy/pasted from the main buildbot Makefile
* buildbot-www, buildbot-grid-view, buildbot-console-view, buildbot-waterfall-view cannot be tested outside
of buildbot, so remove stuff from their Makefiles to simplify.
Reviewed_by: koobs, ???
Approved by:
Differential_Revision: D12479
```