Add single image WMS with custom projection example
Fix reference and title according to @erilem comments.
Change the way the projection is managed and use ol.projection.configureProj4jsProjection
Fix check for unused goog.require directives
Remove unused goog.require directives
Merge pull request #364 from bbinet/fix-check-requires

Fix check for unused goog.require directives
Remove unused goog.require directives
Add ScaleLine control to wms-custom-proj example

This requires using Proj4js, and configuring it with an extent.
Merge pull request #366 from elemoine/347

Add ScaleLine control to wms-custom-proj example
Update CONTRIBUTING.md
Update CONTRIBUTING.md
Merge pull request #330 from cedricmoullet/wmscustom

Add single image WMS with custom projection example
Make ratio configurable in WMS single image
Merge pull request #367 from elemoine/ratio

Make ratio configurable in WMS single image
Add test for array equality

Hilariously, expect.js does not have one.
Don't use goog.array in ol.Collection tests
Remove unused goog.require directives

See #367.
Merge pull request #369 from bbinet/fix-unusedrequires

Remove unused goog.require directives
Merge pull request #368 from twpayne/equalarray

Add array value equality test
Fix typecast

Fix JSC_MISPLACED_TYPE_ANNOTATION warnings with the plovr 2013 release
candidate (http://plovr.com/plovr-2013-rc.jar)