FIX: CLO-4615 - Treat component attributes with empty value as if they were missing.

git-svn-id: https://svn.javlin.eu/svn/cloveretl.opensource/trunk-4-0@16325 a09ad3ba-1a0f-0410-b1b9-c67202f10d70
UPDATE: Attempt to enable assertions in tests.

git-svn-id: https://svn.javlin.eu/svn/cloveretl.opensource/trunk-4-0@16326 a09ad3ba-1a0f-0410-b1b9-c67202f10d70
UPDATE: Salesforce password and token.

git-svn-id: https://svn.javlin.eu/svn/cloveretl.opensource/trunk-4-0@16327 a09ad3ba-1a0f-0410-b1b9-c67202f10d70
UPDATE: default locale and default timezone management cleanup

git-svn-id: https://svn.javlin.eu/svn/cloveretl.opensource/trunk-4-0@16329 a09ad3ba-1a0f-0410-b1b9-c67202f10d70