Added a way to get all models inside a composite.
Fixed the enable/disable checkbox for IPSec connections and prevent its activation if the tunnel configuration doesn't pass validation
More validation improvements and fixed an i18n string
Fixed a typo and a bug with recursive lookup of models. Include unit tests for the new models method
Stop hardcoding the list of models to process and use the new autodiscovering api. Fixed a typo in an exception raising. Fixed a validation problem when checking the tunnel status.
Updated to use 'given' instead of multiple ifs
Fixed confphase1 and confphase2 validation to use real typed validation
Merge pull request #360 from Zentyal/cperello/ipsec-fixes

Cperello/ipsec fixes