Fix stray return
Merge pull request #639 from twpayne/fix-webgl-map-renderer

Bing Maps example is broken
Scale tile queue according to number of sources
Fix out of scope variables in ol.Map
Merge pull request #650 from twpayne/fix-out-of-scope-variables

Fix out of scope variables in ol.Map
Show off
Merge pull request #651 from twpayne/full-screen-drag-rotate-and-zoom

Show off
Update ol.Feature jsdoc
Merge pull request #652 from fredj/ol.feature-jsdoc

Update ol.Feature jsdoc
Remove BACKGROUND_COLOR from ol.Map

Let the map be transparent, the background color can be set with CSS.
Add a background image to the example maps

image from http://subtlepatterns.com/
Merge pull request #653 from fredj/background-color

Remove BACKGROUND_COLOR from ol.Map
Merge pull request #655 from twpayne/scale-tile-queue

Scale tile queue according to number of sources