Added support of PIXEL_SIZE_ON_SCREEN range mode in mp driver
BUG-FIX: the minimum LOD option is now applied correctly when engine mp is used.
Fixed a typo in a comment
Merge branch 'master' of https://github.com/gwaldron/osgearth
Removed "fix" for the min LOD option.
Commit untracked fiels for merging
Merge remote-tracking branch 'hpicgs/master'
Merge remote-tracking branch 'origin/master'
Removed unnecessary backup file
Merge pull request #482 from hpicgs/master

Option to activate PIXEL_SIZE_ON_SCREEN range mode for the mp driver + Fix for min LOD option
Fix pre/post transform in SRS.
Merge branch 'master' of github.com:gwaldron/osgearth
GLSL color filter: allow varyings, etc
support of pixeldepth for elevations
Merge pull request #491 from remoe/add/packager_hf_depth

support of pixeldepth for elevations
Added ready check before any cloud drawing to prevent a crash. Changed resources to Resources for correct SilverLining resource directory name
Updates to the packager to allow canceling on error and manual canceling.
Merge pull request #492 from dchristopherfennell/master

Added ready check before any cloud drawing to prevent a crash. Changed r...
Merge branch 'master' of https://github.com/gwaldron/osgearth

Conflicts:
	src/osgEarthUtil/TMSPackager.cpp
Merge branch 'master' of https://github.com/gwaldron/osgearth