Rename CLAMP to CLAMP_TO_EDGE
Merge pull request #1118 from AnalyticalGraphicsInc/clamp

Rename CLAMP to CLAMP_TO_EDGE
Make extent and polygon primitives synchronous by default.
Merge pull request #1122 from AnalyticalGraphicsInc/syncPrimitives

Make Primitives synchronous.
Preemptively add a potential future file to .gitignore
Merge remote-tracking branch 'origin/master' into dataSourceBrowser