Feature/refactor mercator layer#41

Merged

wcmatthysen merged 9 commits intoWorldWindEarth:developfrom

EMaksymenko:feature/refactor-mercator-layer

May 22, 2019

Commits on Apr 23, 2019

Optimize BasicMercatorTiledImageLayer code (https://github.com/WorldWindEarth/WorldWindJava/issues/38).
EMaksymenko
committed

Commits on Apr 28, 2019

Refactored OSMCycleMapLayer.
wcmatthysen
committed

Commits on May 20, 2019