rfc can now be solved.

show.html still needs to be finished

db/migrate/20160624130951_add_solved_to_request_for_comments.rb

@@ -0,0 +1,5 @@
+class AddSolvedToRequestForComments < ActiveRecord::Migration
+  def change
+    add_column :request_for_comments, :solved, :boolean
+  end
+end