Update fabfile to test all MANAGED_APPS
Update fabfile to test all MANAGED_APPS

So that we make sure to test them often. In order to _not_ test them,
you must specify a test filter explicitly.

RickMohr/otm-core,maurizi/otm-core,maurizi/otm-core,RickMohr/otm-core,recklessromeo/otm-core,recklessromeo/otm-core,recklessromeo/otm-core,clever-crow-consulting/otm-core,RickMohr/otm-core,recklessromeo/otm-core,maurizi/otm-core,clever-crow-consulting/otm-core,clever-crow-consulting/otm-core,RickMohr/otm-core,maurizi/otm-core,clever-crow-consulting/otm-core