Added prettyPrintTime and prettyPrintSize to StringUtils
Added new osgearth_seed2 app to test new caching ideas
Added osgearth_seed2 to CMakeLists
Added FindZeroMQ CMake module
Removed prettyPrintTime and prettyPrintSize from osgearth_seed.
Moved some files out of osgearth_seed2 to their own classes.
Trying to modularize the MultiProcessTileVisitor a bit more.
Fix: linux compile error
ldb: cleanup msgs
Fix: texture matrix multiple order was wrong
DrapingTechnique: bail out if the polyhedron is invalid
LevelDB: size caps and env var overrides
Sky: properly set initial DateTime in SilverLining driver
Docs update
docs
Update leveldb.rst
Cache: add purging
Merge branch 'master' of github.com:gwaldron/osgearth
Add transform example.
LDB cache: add obfuscation key