Raise error when client requires starttls but server doesn't offer it
Add support for starttls and SASL external auth as a server
Add to=JID to escalus_stanza:iq for vCard tests
Add common predicates and stanza children
Merge branch 'for_ejd_tls' into ldap_work_combined
Add ct config traversal shortcut
Allow binary JID in escalus_stanza:to/something
remove redundant rebar binary
Add websockets support
Fix callbacks
Use master branch of wsecli
Add vcard support
Merge branch 'ldap_work_combined'
Fix unused variables
Issue BOSH requests asynchronously

Multiple simultaneous HTTP requests are necessary for sending
consecutive messages (or, to be precise, sending anything after sending
a message).
Properly update rid when issuing async requests
Maintain at least one request held by server
Fix link to docs/intro.md
Export [create,delete]_users/2 from escalus.erl
Fix type predicate for undefined attribute