Updated gems in Gemfile

**2 Steps I took:**
    1. Deleted Gemfile.lock file. Ran **bundler** to regenerate it. Ran **rake** and all tests/specs passed.
    2. Removed all but 2 gem version numbers from Gemfile. Ran **rake** and all tests/specs passed.

Here is the results (might be able to see, new service (versioneye.com) I just found): 
https://www.versioneye.com/user/projects/518525a294c24d00020017f5