dashboard: use external links in JobInfo

This will let us use the information not just on the web dashboard, but
also for external reportings.

dashboard/app/jobs.go

@@ -1425,10 +1425,10 @@ func makeJobInfo(c context.Context, job *Job, jobKey *db.Key, bug *Bug, build *B
 		Started:          job.LastStarted,
 		Finished:         job.Finished,
 		CrashTitle:       job.CrashTitle,
-		CrashLogLink:     textLink(textCrashLog, job.CrashLog),
-		CrashReportLink:  textLink(textCrashReport, job.CrashReport),
-		LogLink:          textLink(textLog, job.Log),
-		ErrorLink:        textLink(textError, job.Error),
+		CrashLogLink:     externalLink(c, textCrashLog, job.CrashLog),
+		CrashReportLink:  externalLink(c, textCrashReport, job.CrashReport),
+		LogLink:          externalLink(c, textLog, job.Log),
+		ErrorLink:        externalLink(c, textError, job.Error),
 		Reported:         job.Reported,
 		TreeOrigin:       job.TreeOrigin,
 		OnMergeBase:      job.MergeBaseRepo != "",