Merge branch 'create-reset-sip-account'

* create-reset-sip-account:
  Create or reset SIP account
  Factor out Catapult connection

Factor out Catapult connection

So that every object which needs to talk to Catapult does not need to know
everthing about it.

Merge branch 'import-to-catapult'

* import-to-catapult:
  Import newly-purchased numbers to Catapult

Import newly-purchased numbers to Catapult

Since we still use Catapult ("v1") for voice application, we need to import all
numbers there and set their applicationId to match.