Changelog
7824760 DEV-1636: Set 'acl' field to JSON session object even when it is nil (#48)
98181c8 DEV-1649: API PUT tunnel: check whether remote port is open, refactoring (#50)
e27d6fc DEV-1649: Check whether remote tunnel destination is available on client side (#53)
94829f9 DEV-1726, 1636, 1638: Small fixes: use null for scheme and acl fields, fix docs (#49)
25d7422 DEV-1741: Return 401 instead of 500 on jwt auth failures (#51)