Don't lint examples/loader.js
Factor out css.js and fix requires
Move postrender event listening into base class
Handle unlistening in base class
Make build.py PEP8 compliant again
Merge pull request #482 from twpayne/control-clean-ups

Control clean-ups
Remove social widgets when debugging

Social widgets increase load times, add uncontrolled JavaScript code,
and open potential security holes.  None of these are desirable,
especially when debugging.  This commit removes the Twitter and Google
Plus widgets, at least when the window location has a query string
(e.g. "?mode=RAW").
Update examples URL to openlayers.github.io
Merge pull request #487 from twpayne/update-url

Update examples URL to openlayers.github.io
Merge pull request #486 from twpayne/build-py-pep8

Make build.py PEP8 compliant again
Read provides from Closure Library
Add missing Closure Library requires
Speed up requirements checking
Merge pull request #485 from twpayne/no-social-widgets-when-debugging

Remove social widgets when debugging
Do not always limit num of tile loads per frame
Merge pull request #484 from twpayne/check-goog-requires

Check requires from Closure Library
Merge pull request #477 from elemoine/slow-start

Tile loading is slow to start