Added CanCan.

Implementation will have to wait until I have an internet connection

Changes

--- Gemfile f676c1cab216e93c60b610e40e82c4ca8f210ba7

+++ Gemfile 29a9acc3ea21909c9715dc16c2816107821d693d

@@ -8,6 +8,7 @@

+gem 'cancan'

--- Gemfile.lock f676c1cab216e93c60b610e40e82c4ca8f210ba7

+++ Gemfile.lock 29a9acc3ea21909c9715dc16c2816107821d693d

@@ -31,6 +31,7 @@

+    cancan (1.6.5)

@@ -80,6 +81,7 @@

+  cancan