SunOS libform does not have TYPE_IPV4, disable it.
Update to jabberd 2.3.1

* 2.3.0 to 2.3.1 upgrade:

What changed:
- Marked "TLS-Everywhere" as EXPERIMENTAL feature
- default EXPERIMENTAL to 'no'
- default SUPERSEDED to 'no'
- moved STANZA-ACK and MY-IP-ADDRESS XEPs and IQ-PRIVATE push
  out of experimental status


* 2.2.17 to 2.3.0 upgrade:

What changed:
- Renamed non-standard UPGRADE file overwriting outdated NEWS file
- Semantic Versioning: http://semver.org/
- TLS Everywhere: https://github.com/stpeter/manifesto
- Required GSASL >=1.1
- jabberd should compile without warnings
- out-of-source builds should work
- pgsql: authreg password_type support
- pgsql: schema support
- ldapvcard: groupattr works even if no groupattr_regex defined
- ldapfull: checks for ldap group membership on login
- vCard: Assume tel phone is voice phone
- MySQL: default password hashing algorithm changed to SHA512
- out-conn-reuse s2s.xml option naming unified
- XML parse error will log buffer details
- CRAM-MD5 auth support
- router private key cachain and password support
- hashed passwords support in SQLite3 storage
Update chat/jabberd2 to 2.3.1.
Remove "FETCH_USING=curl".