dev env changes: capybara, poltergeist, spec/rails_helpers
added team_managemenet feature specs and shared steps
Add instructions for creating Stripe plans
fixed and refactoring

fix for ajax validations wihtout parameter

create logig refactoring
use ruby 2.1.4
Travis should use latest version
Merge pull request #235 from jbinto/update-contributing-doc-for-stripe

Add instructions for creating Stripe plans
Merge pull request #234 from YaroSpace/join_team_error_#391

Join team error #391
Protip mailer subject should be "It's %FULL_DAY_NAME%"
Fixed the coderwall-box script to install Ruby 2.1.4
Set the travis to install 2.1.4
fix for updating ES index when deleting a user and associated records