Update Raven (Sentry lib) to 3.15.0 in client

services/web/app/views/sentry.pug

@@ -1,10 +1,12 @@
-- if (typeof(sentrySrc) != "undefined")
-	- if (sentrySrc.match(/^([a-z]+:)?\/\//i))
-		script(src=sentrySrc)
-	- else
-		script(src=buildJsPath("libs/"+sentrySrc, {fingerprint:false}))
-- if (typeof(sentrySrc) != "undefined")
+- if (typeof(sentryPublicDSN) != "undefined")
 	script(type="text/javascript").
+		require.config({
+			paths: {
+				'raven': 'libs/raven-3.15.0.min'
+			}
+		});
+
+		require(["raven"], function(Raven) {
 			if (typeof(Raven) != "undefined" && Raven.config) {
 				Raven.config("#{sentryPublicDSN}", {
 				tags: { 'commit': '@@COMMIT@@', 'build': '@@RELEASE@@' },
@@ -70,6 +72,7 @@
 				// whitelistUrls: ['example.com/scripts/']
 				}).install();
 			}
+		})
 	- if (user && typeof(user) != "undefined" && typeof (user.email) != "undefined")
 		script(type="text/javascript").
 			if (typeof(Raven) != "undefined" && Raven.setUserContext) {