Improve runner styling
Merge pull request #152 from alexspeller/master

Improve runner styling
Mix parent metadata into Example and ExampleGroup metadata
Add :example_group alias for ExampleGroup :parent
Hash-like accessors for Example and ExampleGroup methods and metadata
Merge pull request #164 from florish/master

Extended metadata access for Example and ExampleGroup
Update mocha (1.17.1) and chai (1.9.0)
Release 3.1.0
Merging in 3.1.0 from jfirebaugh