<Gemfile.lock.ruby-1.8> Bug 1063265, updated Gemfile for ruby 1.8

`git push` under OSE 2.0 yielded this error:
```
remote: /usr/lib/ruby/gems/1.8/gems/bundler-1.0.21/lib/bundler/runtime.rb:31:in `setup': 
You have already activated thor 0.14.6, but your Gemfile requires thor 0.18.1. Using 
bundle exec may solve this. (Gem::LoadError)
```
Regenerating the Gemfile.lock for ruby 1.8 using `bundle install --no-deployment`  seems to have fixed this. Tested against OSE 2.0 and production Online devenv