Updated gems and database conf
Fix bug that was crashing the creation of TR

* remove parent validation in the confirmation email
* make sure the student has an email before sending confirmation
Don't use old versions of Rubyracer
Merge branch 'master' of github.com:LAS-IT/weekends
Merge branch 'master' into feature/chef

Conflicts:
	Gemfile
Test chef deploy after making change to weekends code.
Merge pull request #1 from LAS-IT/feature/chef

Feature/chef