Fix CZML cartographicDegrees and add specs.

Fixes #1094
Add front and back face passes for translucent, closed geometry.
Update Sandcastle example.
Add test for rendering primitive in two passes.
Merge pull request #1095 from AnalyticalGraphicsInc/issue1094

Fix CZML cartographicDegrees and add specs.
Work around more Android uniform weirdness.
Good old triple equals.
Update geometry Sandcastle example
Tweaks for two-pass primitive rendering
Merge pull request #1100 from AnalyticalGraphicsInc/translucentGeometry

Translucent Geometry
Updated CHANGES.md
Merge pull request #1103 from AnalyticalGraphicsInc/nexus4

Make Cesium work again on the Nexus 4
Replace `@return` with `@returns`

Fixes #1091
Merge pull request #1105 from AnalyticalGraphicsInc/issue1091

Replace `@return` with `@returns`
Disable default scaling of DynamicBillboards for now until better
defaults are identified or improved control over this feature can be
defined.

Signed-off-by: Alex Wood <abwood@gmail.com>
Merge pull request #1106 from abwood/issue93

Disable default near/far scaling of DynamicBillboards
update build.xml to version v20
Merge branch 'master' into newShaderEnhancements