put ruby-debug back into Gemfile.lock

Gemfile.lock

@@ -122,6 +122,7 @@ GEM
       selenium-webdriver (>= 0.0.3)
     childprocess (0.0.7)
       ffi (~> 0.6.3)
+    columnize (0.3.1)
     crack (0.1.8)
     cucumber (0.9.2)
       builder (~> 2.1.2)
@@ -162,6 +163,7 @@ GEM
     i18n (0.4.1)
     json (1.4.6)
     json_pure (1.4.6)
+    linecache (0.43)
     mail (2.2.7)
       activesupport (>= 2.3.6)
       mime-types
@@ -223,6 +225,11 @@ GEM
       rspec-expectations (= 2.0.0)
     rspec-rails (2.0.0)
       rspec (= 2.0.0)
+    ruby-debug (0.10.3)
+      columnize (>= 0.1)
+      ruby-debug-base (~> 0.10.3.0)
+    ruby-debug-base (0.10.3)
+      linecache (>= 0.3)
     rubyzip (0.9.4)
     selenium-webdriver (0.0.29)
       childprocess (>= 0.0.7)
@@ -280,6 +287,7 @@ DEPENDENCIES
   roxml!
   rspec (>= 2.0.0)
   rspec-rails (>= 2.0.0)
+  ruby-debug
   sprinkle!
   thin
   webmock