Remove lib folder from autoload path

- Load extensions explicitly

lib/gem_ext/i18n.rb

@@ -0,0 +1,11 @@
+# Don't raise error when nil
+# http://stackoverflow.com/questions/9467034/rails-i18n-how-to-handle-case-of-a-nil-date-being-passed-ie-lnil
+module I18n
+  class << self
+    alias_method :original_localize, :localize
+
+    def localize(object, options = {})
+      object.present? ? original_localize(object, options) : ''
+    end
+  end
+end