openlayers/ol3 — pull request #1011 by twpayne (2013-09-11 14:22:15+00:00)
Title: Add ol.source.XYZ#setUrl

As [requested on ol3-dev](https://groups.google.com/forum/?fromgroups=#!topic/ol3-dev/bKo627sevp4).

Note that this commit is based on #979.