Summary

The v0.18.0 release includes:

• an upgrade of the OpenLayers library to v4.5.0.
• the removal of the Closure Library dependencies

Changelog

• #203 - Upgrade eslint to 4.15.0 (@mapgears)
• #202 - Upgrade to OpenLayers 4.5.0 (@bampakoa)
• #174 - Remove Closure Library dependency (@JamiesWhiteShirt)