Specify Ruby version for rbenv.
Add 'quiet_assets' gem.
Add better loggin to development env.
Setup dummy data.

* add data helper.
* add spec/support directory for data mocking.
* add rake task to run the data seed.
Fix incorrect usage of empty? method.
Add note about user profile name attribute.
Merge pull request #1 from vitaliyg/initial-env-setup

Initial env setup