Rather than waiting for crashlytics to send on next launch, send reports

immediately.
(related to #20)

app/src/main/java/com/geeksville/mesh/MeshUtilApplication.kt

@@ -30,6 +30,7 @@ class MeshUtilApplication : GeeksvilleApplication() {
             // Attach to our exception wrapper
             Exceptions.reporter = { exception, _, _ ->
                 crashlytics.recordException(exception)
+                crashlytics.sendUnsentReports()
             }
 
             if (isAnalyticsAllowed) {