Adds support for meteor version 0.8.1.

Updates the following dependencies:

* mongodb   - the necessary version is now on npm
* esprima   - now uses the specific version that meteor requires (from repository)
* css-parse - now uses the specific version that meteor requires (from repository)
0.7.0
Merge pull request #55 from onmodulus/feature/meteor-0-8-1

Feature/meteor 0 8 1