v2.13: depending on utility>=1.30 and http>=1.8

v2.12: added referenceFrame to MeshTilesConfig, used only in DebugCon…

…fig serialization

v2.11: services, atmosphere

v2.10: using imgproc::fillRectangle

v2.9:

 * Imported code from tools (namely temporary tileset + temporary tileset based encoder)
 * Added version tagging in tileset selection when generating storage map config

v2.8: influenced tile support

v2.7: non-tileset tiles merge support

v2.6: added atlas image sharing support

v2.5: optimized navtile generator DMTize

v2.4: using new JsonCPP I/O API