Terrain Macro Texture

Adds another layer of detail-like texture to the terrain and the
interface updates in the Terrain Painter.
Terrain Macro Texture

Adds another layer of detail-like texture to the terrain and the
interface updates in the Terrain Painter.
Merge pull request #287 from xoltan/terrainmacro

Terrain Macro Texture
Merge remote-tracking branch 'upstream/development' into development