Merge pull request #1 from gwaldron/master

update to gwaldron:master
Merge pull request #2 from gwaldron/master

update 20140418
Update Registry.cpp
Update Registry.cpp
add support for the Chinese character
Boundary work.
Enable fallback on root tile generation to support the case when the source data has fewer LODs than the root tile request. Works for some projections so far but not others; needs further review
Merge branch 'master' of github.com:gwaldron/osgearth
PixelAutoTransform: support icons with a heading
wip
PixelAuto: add camera rot
Merge branch 'master' into topic-boundary
BoundaryUtil: add tolerance setting; default to 0.1; Improve the boundary-walking algorithm
CMake: fix the search for leveldb debug lib
Add --tolerance to boundarygen
Merge pull request #499 from huzihe/master

add support for the Chinese character in the file name and attributes in shapefile
BoundaryGen: fix the vertex-matching comparator.
Merge branch 'master' of github.com:gwaldron/osgearth
Fix in TileModelCompiler for lod blending when the parent texture can't be found due to a min level settings
Merge branch 'master' of https://github.com/gwaldron/osgearth