Changed from ruby_debug to debugger gem

Gemfile

@@ -45,6 +45,6 @@ gem "declarative_authorization"
 gem "erubis"
 
 group :development do
-  gem "ruby-debug19"
+  gem "debugger"
 end
 

Gemfile.lock

@@ -35,11 +35,16 @@ GEM
       activemodel (= 3.0.3)
       activesupport (= 3.0.3)
     activesupport (3.0.3)
-    archive-tar-minitar (0.5.2)
     arel (2.0.4)
     bcrypt-ruby (2.1.2)
     builder (2.1.2)
-    columnize (0.3.2)
+    columnize (0.8.9)
+    debugger (1.6.8)
+      columnize (>= 0.3.1)
+      debugger-linecache (~> 1.2.0)
+      debugger-ruby_core_source (~> 1.3.5)
+    debugger-linecache (1.2.0)
+    debugger-ruby_core_source (1.3.5)
     declarative_authorization (0.5)
       rails (>= 2.1.0)
     devise (1.1.2)
@@ -49,8 +54,6 @@ GEM
       abstract (>= 1.0.0)
     faker (0.3.1)
     i18n (0.4.2)
-    linecache19 (0.5.11)
-      ruby_core_source (>= 0.1.4)
     machinist (1.0.6)
     mail (2.2.10)
       activesupport (>= 2.3.6)
@@ -79,16 +82,6 @@ GEM
       rake (>= 0.8.7)
       thor (~> 0.14.4)
     rake (0.8.7)
-    ruby-debug-base19 (0.11.24)
-      columnize (>= 0.3.1)
-      linecache19 (>= 0.5.11)
-      ruby_core_source (>= 0.1.4)
-    ruby-debug19 (0.11.6)
-      columnize (>= 0.3.1)
-      linecache19 (>= 0.5.11)
-      ruby-debug-base19 (>= 0.11.19)
-    ruby_core_source (0.1.4)
-      archive-tar-minitar (>= 0.5.2)
     ruby_parser (2.0.4)
       sexp_processor (~> 3.0)
     sexp_processor (3.0.4)
@@ -103,14 +96,14 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
+  debugger
   declarative_authorization
   devise (>= 1.1.2)
   erubis
   faker
   machinist
   pg
   rails (>= 3.0.3)
-  ruby-debug19
   ruby_parser
   warden
   will_paginate!