bumps rails version in gemspec
bumps minor version.
"How should I deal with revisions in the 0.y.z initial development phase?
The simplest thing to do is start your initial development release at 0.1.0 and then increment the minor version for each subsequent release."
updates version listed in readme
Merge pull request #19 from G5/upgrade-rails-74520484

bumps rails version in gemspec