Add ability to set true timestamp (close snowplow#484)

Author: chuwy

src/js/out_queue.js

@@ -315,7 +315,7 @@
 		 */
 		function encloseInPayloadDataEnvelope(events) {
 			return json2.stringify({
-				schema: 'iglu:com.snowplowanalytics.snowplow/payload_data/jsonschema/1-0-3',
+				schema: 'iglu:com.snowplowanalytics.snowplow/payload_data/jsonschema/1-0-4',
 				data: events
 			});
 		}

tests/integration/integration.js

@@ -153,10 +153,11 @@ define([
 			}), 'A structured event should be detected');
 		},
 
-		'Check an unstructured event was sent': function () {
+		'Check an unstructured event with true timestamp was sent': function () {
 			assert.isTrue(checkExistenceOfExpectedQuerystring({
 				e: 'ue',
-				ue_px: 'eyJzY2hlbWEiOiJpZ2x1OmNvbS5zbm93cGxvd2FuYWx5dGljcy5zbm93cGxvdy91bnN0cnVjdF9ldmVudC9qc29uc2NoZW1hLzEtMC0wIiwiZGF0YSI6eyJzY2hlbWEiOiJpZ2x1OmNvbS5hY21lX2NvbXBhbnkvdmlld2VkX3Byb2R1Y3QvanNvbnNjaGVtYS81LTAtMCIsImRhdGEiOnsicHJvZHVjdElkIjoiQVNPMDEwNDMifX19'
+				ue_px: 'eyJzY2hlbWEiOiJpZ2x1OmNvbS5zbm93cGxvd2FuYWx5dGljcy5zbm93cGxvdy91bnN0cnVjdF9ldmVudC9qc29uc2NoZW1hLzEtMC0wIiwiZGF0YSI6eyJzY2hlbWEiOiJpZ2x1OmNvbS5hY21lX2NvbXBhbnkvdmlld2VkX3Byb2R1Y3QvanNvbnNjaGVtYS81LTAtMCIsImRhdGEiOnsicHJvZHVjdElkIjoiQVNPMDEwNDMifX19',
+				ttm: '1477401868'
 			}), 'An unstructured event should be detected');
 		},
 

tests/pages/integration-template.html

@@ -43,7 +43,7 @@
 			data: {
 				productId: 'ASO01043'
 			}
-		});
+		}, [], { type: 'ttm', value: 1477401868 });
 
 		var orderId = 'order-123';