OL3-Cesium 1.10 release

Hello,

I am pleased to announce version 1.10 of OL3-Cesium,
based on OpenLayers 3.11.2 and Cesium 1.15.

Starting from this version, OL3-Cesium is compiled together with OL3,
which standardizes and simplifies the build process and is more powerful.

There are also many bug fixes.

Thank you to all contributors of OL3, Cesium and OL3-Cesium for making
this release possible.