added garden test
changed default z offset to avoid z-fighting in plugin
changed error handling to exception rather that return code
test does not pass yet
fix #5
integrated resource build for plugin
added missing files
garden test passes, but stange results and leak
adde lib ply2tri
work in progress for fast isvalid(polygon)
added validity check
tests pass, but I had problems running the demo (slow and crash)
this is still work in progress
fixed glcombine (for leaks)
added validity test in case we use poly2tri
added a list of invalid polygons for testing
removed debug print
added missing file
added missing file
adding missing build dep
refactored PostGisUtils
refactored and moved code (test beside class)
renomed PostgisUtils (does not depend on postgis)
spplit the viewer into an osg nodekit and viewer
styling and test for styling
forgot this file in last comit
more elegant handling of null values from postgres
added license (gpl v3 or higher)