Merge branch 'ban-bad-tel-fwd'

* ban-bad-tel-fwd:
  Don't allow bad tel format

Don't allow bad tel format

Otherwise people can specify things that won't (or shouldn't) work.

Don't send too big timeout to bandwidth

Merge branch 'configure-calls-v2'

* configure-calls-v2:
  New configure calls command
  Move more persistence into the repo layer
  Easy DSL for adding XEP-0122 validation to fields
  CustomerFwd uses ValueSemantics, translates old XMPP-SIP URI

CustomerFwd uses ValueSemantics, translates old XMPP-SIP URI

More of the original data is kept now, so this object could be used for putting
to persistence as well as for loading from it.