Fixes #2398; Removes loading animation overlay after pages are rendered.

packages/rocketchat-mailer/client/views/mailerUnsubscribe.coffee

+Template.mailerUnsubscribe.onRendered ->
+	$('.page-loading').remove()

packages/rocketchat-mailer/package.js

@@ -22,7 +22,8 @@ Package.onUse(function(api) {
 		'client/router.coffee',
 		'client/views/mailer.html',
 		'client/views/mailer.coffee',
-		'client/views/mailerUnsubscribe.html'
+		'client/views/mailerUnsubscribe.html',
+		'client/views/mailerUnsubscribe.coffee'
 	], 'client');
 
 	api.addFiles([

packages/rocketchat-ui/views/app/secretURL.coffee

@@ -19,3 +19,6 @@ Template.secretURL.onCreated ->
 			@hashIsValid.set true
 		else
 			@hashIsValid.set false
+
+Template.secretURL.onRendered ->
+	$('.page-loading').remove()

packages/rocketchat-ui/views/cmsPage.coffee

@@ -6,4 +6,7 @@ Template.cmsPage.onCreated ->
 
 Template.cmsPage.helpers
 	page: ->
-		return Template.instance().page.get()
\ No newline at end of file
+		return Template.instance().page.get()
+
+Template.cmsPage.onRendered ->
+	$('.page-loading').remove()

packages/rocketchat-ui/views/fxos.coffee

@@ -5,9 +5,16 @@ Template.fxOsInstallPrompt.onRendered ->
 			# Save the App object that is returned
 			appRecord = this.result
 			BlazeLayout.render 'fxOsInstallDone'
-		
+
 		request.onerror = () ->
 			# Display the error information from the DOMError object
 			BlazeLayout.render 'fxOsInstallError', {installError: this.error.name}
-			
-	setTimeout(showPrompt, 2000);
\ No newline at end of file
+
+	setTimeout(showPrompt, 2000);
+	$('.page-loading').remove();
+
+Template.fxOsInstallDone.onRendered ->
+	$('.page-loading').remove();
+
+Template.fxOsInstallError.onRendered ->
+	$('.page-loading').remove();