Fix Bug 1030 checking that task and note exists

Changelog:
- Fix Bug 1030 checking that task and note exists
- Treat only osm_managed configlets
- Modified connection method without parameters. Used in the execution
  directly from an external script.
- Change code, according to comments.

Change-Id: Ic3045315db2e84bc2bc1c6b9b665ed6d4518017c
Signed-off-by: Francisco Garcia Alvarez <francisco.galvarez@atos.net>