MQ 9.1.5 image changes (#62)

* Upgraded to MQ 9.1.5, upgraded to unzippable install, run as random UID (1001 by default)

* Updated docker tests for MQ 915 random UID

* Added warning to crtmqdir for 10 rc, added trace option to crtmqdir

* Removed dev users from dockerfile

internal/keystore/keystore.go

@@ -1,5 +1,5 @@
 /*
-© Copyright IBM Corporation 2018, 2019
+© Copyright IBM Corporation 2018, 2020
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
@@ -105,14 +105,6 @@ func (ks *KeyStore) Create() error {
 		return fmt.Errorf("error running \"%v -keydb -create\": %v %s", ks.command, err, out)
 	}
 
-	mqmUID, mqmGID, err := command.LookupMQM()
-	if err != nil {
-		return err
-	}
-	err = os.Chown(ks.Filename, mqmUID, mqmGID)
-	if err != nil {
-		return err
-	}
 	return nil
 }
 
@@ -130,14 +122,6 @@ func (ks *KeyStore) CreateStash() error {
 		}
 		return err
 	}
-	mqmUID, mqmGID, err := command.LookupMQM()
-	if err != nil {
-		return err
-	}
-	err = os.Chown(stashFile, mqmUID, mqmGID)
-	if err != nil {
-		return err
-	}
 	return nil
 }