Add an informational message for testers.

MasterPassword/MPAppDelegate.m

@@ -154,6 +154,18 @@
                                                            isEqualToString:[note.object description]])
                                                           [self loadKeyPhrase:YES];
                                                   }];
+    
+#ifndef PRODUCTION
+    [PearlAlert showAlertWithTitle:@"Welcome, tester!" message:
+     @"Thank you for taking the time to test Master Password.\n\n"
+     @"Please provide any feedback, however minor it may seem, via the Feedback action item accessible from the top right.\n\n"
+     @"Contact me directly at:\n"
+     @"lhunath@lyndir.com\n"
+     @"Or report detailed issues at:\n"
+     @"https://youtrack.lyndir.com\n"
+                         viewStyle:UIAlertViewStyleDefault tappedButtonBlock:nil
+                       cancelTitle:nil otherTitles:[PearlStrings get].commonButtonOkay, nil];
+#endif
 
     [[UIApplication sharedApplication] setStatusBarHidden:NO
                                             withAnimation:UIStatusBarAnimationSlide];