depracating javascript in helper method used in pre-assets pipe-line code.
Fix some RSpec 3 deprecations
Upgrade to RSpec 3
Merge pull request #104 from wvanbergen/rspec3

RSpec 3
Merge pull request #102 from abenari/depracate

depracating javascript in helper method used in pre-assets pipe-line code
Add CHANGELOG and CONTRIBUTING
Add link to design internals document to CONTRIBUTING