add basic user revert functionality

app/controllers/user_reverts_controller.rb

@@ -0,0 +1,15 @@
+class UserRevertsController < ApplicationController
+  before_filter :janitor_only
+
+  def new
+    @user = User.find(params[:user_id])
+  end
+
+  def create
+    user = User.find(params[:user_id])
+    revert = UserRevert.new(user.id)
+    revert.process
+    redirect_to(user_path(user.id))
+  end
+end
+