Allow to set messages as ungroupable

packages/rocketchat-integrations/server/api/api.coffee

@@ -78,6 +78,7 @@ Api.addRoute ':integrationId/:userId/:token', authRequired: true,
 			parseUrls: false
 			bot:
 				i: integration._id
+			groupable: false
 
 		RocketChat.sendMessage user, message, room, {}
 

packages/rocketchat-ui-message/message/message.coffee

@@ -1,6 +1,10 @@
 Template.message.helpers
 	isBot: ->
 		return 'bot' if this.bot?
+	isGroupable: ->
+		return 'false' if this.groupable is false
+	isSequential: ->
+		return 'sequential' if this.groupable isnt false
 	own: ->
 		return 'own' if this.u?._id is Meteor.userId()
 	chatops: ->
@@ -111,17 +115,19 @@ Template.message.onViewRendered = (context) ->
 		if lastNode.previousElementSibling?.dataset?.date isnt lastNode.dataset.date
 			$(lastNode).addClass('new-day')
 			$(lastNode).removeClass('sequential')
-		else if lastNode.previousElementSibling?.dataset?.bot is 'bot' or lastNode.previousElementSibling?.dataset?.username isnt lastNode.dataset.username
+		else if lastNode.previousElementSibling?.dataset?.username isnt lastNode.dataset.username
+			$(lastNode).removeClass('sequential')
+
+		if lastNode.previousElementSibling?.dataset?.groupable is 'false'
 			$(lastNode).removeClass('sequential')
 
 		if lastNode.nextElementSibling?.dataset?.date is lastNode.dataset.date
 			$(lastNode.nextElementSibling).removeClass('new-day')
-			$(lastNode.nextElementSibling).addClass('sequential')
 		else
 			$(lastNode.nextElementSibling).addClass('new-day')
 			$(lastNode.nextElementSibling).removeClass('sequential')
 
-		if lastNode.nextElementSibling?.dataset?.bot is 'bot' or lastNode.nextElementSibling?.dataset?.username isnt lastNode.dataset.username
+		if lastNode.nextElementSibling?.dataset?.username isnt lastNode.dataset.username
 			$(lastNode.nextElementSibling).removeClass('sequential')
 
 		if not lastNode.nextElementSibling?

packages/rocketchat-ui-message/message/message.html

@@ -1,5 +1,5 @@
 <template name="message">
-	<li id="{{_id}}" class="message sequential {{system}} {{t}} {{own}} {{isTemp}} {{chatops}}" data-username="{{u.username}}" data-bot="{{isBot}}" data-date="{{date}}">
+	<li id="{{_id}}" class="message {{isSequential}} {{system}} {{t}} {{own}} {{isTemp}} {{chatops}}" data-username="{{u.username}}" data-groupable="{{isGroupable}}" data-date="{{date}}">
 		{{#if avatar}}
 			<a class="thumb user-card-message" href="#" data-username="{{u.username}}" tabindex="1">
 				<div class="avatar">