Merge pull request #28 from valerie-roske/defect-341

Mingle#341: search is now case insensitive
cleaned up seeds.rb and added more AssociateConsultant and Review instances
removed reference to rr gem in Gemfile
deleted block of comments from top of seeds file
changed sorting of reviews to first:by selection, then:by consultant_name, then:by review_date
Merge pull request #32 from thoughtworksrichie/master

changed sorting of reviews to first:by selection, then:by consultant_name, then:by review_date