v0.6.1

Merge pull request #14 from AdrianClyde/master

0.6.1

Dimension Support

Added support for dimensions:

• #getDimension - Read a dimension in Optimizely
• #createDimension - Create an Dimension in Optimizely
• #updateDimension - Update an Existing Dimension in Optimizely
• #getDimensions - Retrieves a list of Dimensions in a project from Optimizely