Add a ol.source.ImageStatic example
Merge pull request #1374 from fredj/static-image-example

Add a ol.source.ImageStatic example
Fix indentation in commments
Merge pull request #1468 from fredj/indent

Fix indentation in commments
Remove extra parameters when calling ol.test.source.TileMock.getTile
Merge pull request #1477 from fredj/cleanup

Remove extra parameters when calling ol.test.source.TileMock.getTile
Source state of a layer doesn't depend on group
Merge pull request #1478 from elemoine/groupstate

Source state of a layer doesn't depend on group