Initializing Active Admin adds bourbon, neat and bitters to the Gemfile regardless if they are already there

[mirceacr]

After I ran rails generate atomic_cms:install to initialize Active Admin, I got an error:

!] There was an error parsing `Gemfile`: You cannot specify the same gem twice with different version requirements.
You specified: bourbon (>= 0) and bourbon (~> 4.2.6). Bundler cannot continue.

 #  from /Users/Mircea/Jobbing/easyliving/Gemfile:63
 #  -------------------------------------------
 #  gem 'activeadmin', '1.0.0.pre2'
 >  gem 'bourbon', '~> 4.2.6'
 #  gem 'neat', '~> 1.7.2'
 #  -------------------------------------------

This happened although bourbon, neat and bitters where already in the Gemfile. Checking the Gemfile after this error, I noticed these three gems are added twice, once in the beginning of the file, where they originally where, and the second time at the bottom of the file with specific versions.

[gabeweaver]

Job Story 2