fix tests from mlz repo

- fix omit_unchanged
- names too short
+ other pylint complains
Change-Id: I3c277b461fad1a5fdf8e76ff1cc42b8742d1de16

Change-Id: I58fb64f91bcc2efef20df68f5c63a64315413286

secop/persistent.py

@@ -57,7 +57,7 @@ import json
 
 from secop.lib import getGeneralConfig
 from secop.datatypes import EnumType
-from secop.params import Parameter, Property, BoolType, Command
+from secop.params import Parameter, Property, Command
 from secop.modules import HasAccessibles