Merge pull request #473 from apptentive/fix-legacy-token

Look for legacyToken, not token, on migrated convo

Author: frankus

Apptentive/Apptentive/Engagement/Model/ApptentiveConversationManager.m

@@ -153,7 +153,7 @@ - (ApptentiveConversation *)loadConversation {
 
 		[Apptentive.shared.backend migrateLegacyCoreDataAndTaskQueueForConversation:legacyConversation conversationDirectoryPath:[self conversationContainerPathForDirectoryName:legacyConversation.directoryName]];
 
-		if (legacyConversation.token) {
+		if (legacyConversation.legacyToken) {
 			[self fetchLegacyConversation:legacyConversation];
 
 			[self migrateEngagementManifest];