Use originating post for successful comments

commit 17422a7441909bc0e273f5893573bd5d6ffc1fb3
Author: Gareth <gmackrill@mercycorps.org>
Date:   Sun Dec 28 14:37:17 2014 -0800

    Adds notification css

commit aa56c5cc1b84392bae0e29a9bbc82dadd73aef95
Author: Gareth <gmackrill@mercycorps.org>
Date:   Sun Dec 28 14:37:09 2014 -0800

    Use originating post for successful comments

commit 72b560862b33e49391b86151b3facc5e06fe4410
Author: Gareth <gmackrill@mercycorps.org>
Date:   Sun Dec 28 14:36:18 2014 -0800

    Adds handling for invalid comments