Improve inSensorShadow

Use point in world coordinates as arguement in order to avoid unnecessary
transformation.
Trying out travis-ci
Trying to get it working
Wrong node path
Trying script instead of install
Merge branch 'master' of https://github.com/AnalyticalGraphicsInc/cesium into sensorImprovements
Remove unused parameters from getIntersectionColor.:
Clean up descriptions on build targets.
Updated to node 0.10 and added jsHint
Merge pull request #919 from fstoner/sensorImprovements

Sensor improvements
Fixed typo
Merged jsHint and release into one command
Fix Hello World in Firefox.

The Cesium container div had no styling.
Bump Cesium version to b18.
Merge pull request #917 from cmorse/travis_ci

Basic Travis CI setup
Merge branch 'master' into buildFileCleanup
Merge pull request #920 from AnalyticalGraphicsInc/buildFileCleanup

Clean up descriptions on build targets.
Added @fstoner to CONTRIBUTORS.md