Gemfile.lock in timespan-0.1.0 vs Gemfile.lock in timespan-0.1.2

@@ -1,16 +1,32 @@
 GEM
   remote: http://rubygems.org/
   specs:
+    activemodel (3.2.3)
+      activesupport (= 3.2.3)
+      builder (~> 3.0.0)
+    activesupport (3.2.3)
+      i18n (~> 0.6)
+      multi_json (~> 1.0)
+    bson (1.6.2)
+    builder (3.0.0)
+    chronic (0.6.7)
     diff-lcs (1.1.3)
     git (1.2.5)
+    i18n (0.6.0)
     jeweler (1.8.3)
       bundler (~> 1.0)
       git (>= 1.2.5)
       rake
       rdoc
     json (1.6.6)
+    mongo (1.6.2)
+      bson (~> 1.6.2)
+    mongoid (2.4.9)
+      activemodel (~> 3.1)
+      mongo (~> 1.3)
+      tzinfo (~> 0.3.22)
     multi_json (1.3.2)
     rake (0.9.2.2)
     rdoc (3.12)
       json (~> 1.4)
     rspec (2.9.0)
@@ -19,19 +35,26 @@
       rspec-mocks (~> 2.9.0)
     rspec-core (2.9.0)
     rspec-expectations (2.9.1)
       diff-lcs (~> 1.1.3)
     rspec-mocks (2.9.0)
+    ruby-duration (2.1.3)
+      activesupport (>= 3.0.0)
+      i18n
+      mongoid (~> 2.4.0)
     simplecov (0.6.2)
       multi_json (~> 1.3)
       simplecov-html (~> 0.5.3)
     simplecov-html (0.5.3)
+    tzinfo (0.3.33)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
   bundler (>= 1.0.0)
+  chronic
   jeweler (>= 1.8.3)
   rdoc (>= 3.12)
   rspec (>= 2.8.0)
+  ruby-duration
   simplecov (>= 0.5)