Merge branch 't3537-update-category-notification-center'
(refs #3539) Contained function group in an object.
(refs #3539) add (is add low or upper) flag for api.
(refs #3539) Not call message pager in pc_frontend message/smtChain action.
(refs #3539) auto asynchronous update message data.
(refs #3539) Commonization for javascript api.
(refs #3539) add comment for functions.
(refs #3539) delete the unnecessary divergence processing.
(refs #3539) Use method chain in insertMessageTemplate function.
(refs #3539) update is_read message in controller.
Merge branch 't3539-autosync-messageChain-template' of github.com:ShinichiU/opMessagePlugin into t-3539