geotrellis/geotrellis — pull request #690 by lossyrob (2013-12-21 09:54:17+00:00)
Title: Fixed demo subproject. Some other refactors\error handling changes.

- Made StepAggregator report child errors instead of just saying "error".
- Fixed some instances where I left out an 's' for string interpolation
- Refactored colors.scala