Pass 'top' to remove_rule so that rule matching succeeds

When deleting a vpn-site-connection, deleting the nat rule would
fail because it was created with top=True, but top defaults to
'false' in remove_rule and was not being passed. This caused the
rule matching to fail and the rule to not be deleted.

Change-Id: I51012a783314c97e85b31fc8a73be4cbb8ee7dc5
Closes-Bug: #1331839
Imported Translations from Transifex

Change-Id: I6b7e125163c2de03344f7c7f017b9171ebb6c2c9
Merge "Pass 'top' to remove_rule so that rule matching succeeds"
Merge "Imported Translations from Transifex"