Revert "deleted comment line"

This reverts commit c68187ca83358ded57cef084a9a99dcdddad0a8e.
Revert "Revert "deleted comment line""

This reverts commit 1a8c8714a6e4fa55b518b642b23d8eeb13da3bf1.
added animation to pulsate unread channel
Merge pull request #101 from ytamura/master

Animate pulsing of channel with unread messages