Use of Ruby 2.1.2 is now recommended
Updated to rails 4.1.1, and updated variety of other gems

**Gem Changes**
  - Updated to rails 4.1.1
  - Updated to mysql2 0.3.16
  - Updated to contour 2.5.0
  - Updated to carrierwave 0.10.0
  - Removed turn, and replaced with minitest and minitest-reporters
  - Removed Windows-specific gems
Updated email styling template