Remove JabberUtil, replace with Smack's StringUtil
Remove all traces of the old SASL setting

Smack 4 dropped support for non-SASL auth.
Delete unused maven dependencies
Update to Smack 4.0.4
Remove the hosts listing in createConnection()

Smack 4 does provide the resolved hosts for the XMPP service only after
connect() is called. Fixes an NPE.
Add "accept all certificates" setting
Merge remote-tracking branch 'origin/master' into flow

Conflicts:
	pom.xml
Add HostnameVerifier
Add warning to "Accept all Certificates" setting
Merge pull request #10 from Flowdalic/flow

Clean up following Smack 4 update.  Added trust-all-certificates option.