Gemfile.lock in all_seeing_eye-0.0.19 vs Gemfile.lock in all_seeing_eye-0.0.20

@@ -11,11 +11,10 @@
       bundler (~> 1.0)
       git (>= 1.2.5)
       rake
     rack (1.2.3)
     rake (0.9.2)
-    rbtree (0.3.0)
     rcov (0.9.10)
     redis (2.2.2)
     sinatra (1.2.6)
       rack (~> 1.1)
       tilt (< 2.0, >= 1.2.2)
@@ -34,10 +33,9 @@
   activesupport (>= 2.3.12)
   bundler (~> 1.0.0)
   chronic
   i18n
   jeweler (~> 1.6.4)
-  rbtree
   rcov
   redis
   sinatra
   thin
   vegas