Remove Rails 2.1 from Travis

.travis.yml

@@ -7,7 +7,6 @@ before_install:
   - gem update --system
 script: "bundle exec rake spec:unit spec:acceptance features"
 gemfile:
-  - gemfiles/2.1.gemfile
   - gemfiles/2.3.gemfile
   - gemfiles/3.0.gemfile
   - gemfiles/3.1.gemfile

gemfiles/2.1.gemfile

@@ -1,8 +0,0 @@
-# This file was generated by Appraisal
-
-source "http://rubygems.org"
-
-gem "activerecord", "~> 2.1"
-gem "test-unit", "~> 2.3.0", :platforms=>[:mri_19]
-
-gemspec :path=>"../"

gemfiles/2.1.gemfile.lock

@@ -1,74 +0,0 @@
-PATH
-  remote: /Users/joshuaclayton/dev/gems/factory_girl
-  specs:
-    factory_girl (2.5.1)
-      activesupport (>= 2.3.9)
-
-GEM
-  remote: http://rubygems.org/
-  specs:
-    activerecord (2.3.12)
-      activesupport (= 2.3.12)
-    activesupport (2.3.12)
-    appraisal (0.3.8)
-      bundler
-      rake
-    aruba (0.3.7)
-      childprocess (>= 0.1.9)
-      cucumber (>= 0.10.5)
-      rspec (>= 2.6.0)
-    bluecloth (2.1.0)
-    bourne (1.0)
-      mocha (= 0.9.8)
-    builder (3.0.0)
-    childprocess (0.1.9)
-      ffi (~> 1.0.6)
-    cucumber (1.0.0)
-      builder (>= 2.1.2)
-      diff-lcs (>= 1.1.2)
-      gherkin (~> 2.4.1)
-      json (>= 1.4.6)
-      term-ansicolor (>= 1.0.5)
-    diff-lcs (1.1.2)
-    ffi (1.0.9)
-    gherkin (2.4.1)
-      json (>= 1.4.6)
-    json (1.5.3)
-    mocha (0.9.8)
-      rake
-    rake (0.9.2)
-    rcov (0.9.9)
-    rspec (2.6.0)
-      rspec-core (~> 2.6.0)
-      rspec-expectations (~> 2.6.0)
-      rspec-mocks (~> 2.6.0)
-    rspec-core (2.6.4)
-    rspec-expectations (2.6.0)
-      diff-lcs (~> 1.1.2)
-    rspec-mocks (2.6.0)
-    sqlite3 (1.3.3)
-    sqlite3-ruby (1.3.3)
-      sqlite3 (>= 1.3.3)
-    term-ansicolor (1.0.5)
-    test-unit (2.3.0)
-    timecop (0.3.5)
-    yard (0.7.2)
-
-PLATFORMS
-  ruby
-
-DEPENDENCIES
-  activerecord (~> 2.1)
-  appraisal (~> 0.3.8)
-  aruba
-  bluecloth
-  bourne
-  cucumber (~> 1.0.0)
-  factory_girl!
-  mocha
-  rcov
-  rspec (~> 2.0)
-  sqlite3-ruby
-  test-unit (~> 2.3.0)
-  timecop
-  yard