Tag version v3.16.0

Tag version v3.16.0-rc.1

Merge pull request openlayers#45 from openlayers/upgrade-ol-3.13.1

Upgrade to use v3.13.1 of OpenLayers

Merge pull request openlayers#42 from openlayers/custom-builds

Add ol.style.Text to the exports list

Merge pull request openlayers#39 from openlayers/examples

Misc fixes to examples

Merge pull request openlayers#34 from openlayers/edits

Various updates and changes