Updated README for mysql55
Update to Rails 3.2.15

http://weblog.rubyonrails.org/2013/10/16/Rails-3-2-15-has-been-released/
Added https to Gemfile
Merge pull request #32 from mfojtik/mysql55

Updated README for mysql55
Merge pull request #33 from mfojtik/rails3-2-15

Update to Rails 3.2.15
Updated to 3.2.16
Merge pull request #34 from mfojtik/rails3216

Updated to 3.2.16