Merge pull request #85 from laserlemon/rails_3

Moving Rails3+ work to master

With this I can use the project again in a rails 3.2+ project again. Time to dig through these pull requests and issues....
updated install path for bundler
Merge branch 'master' of github.com:laserlemon/vestal_versions
updating app version
styling for markdown
Don't check in Gemfile.lock
Clean up the Gemfile and gemspec

This removes the dedicated version number file and moves the development dependencies into the Gemfile for finer control.
Use the default .gitignore from "bundle gem"
Slim down the Rakefile
Configure Travis
Add build status to the README

[ci skip]
Test on Travis against multiple minor versions of Active Record
Add development dependencies to the different Active Record gemfiles
adding whitelist attributes for active record 3.2
temporary hack to make serialization work in 3.2
trying to hack YAML into serializing correctly
Merge pull request #89 from justintanner/master

rails 3 whitelist attributes and hack to use the old style YAML serialization