Updated POM version to 4.6.3-SNAPSHOT
SOAP-1021: Upgraded apache http client library, disabled checkedCredentials check
SOAP-1021: Downgraded http client again to original version, added NTLM as a separate auth option for requests
SOAP-1021: Added separator between releases in release notes
SOAP-1021: Added a test to test the scheme factory registry
SOAP-1021: Removed ununsed class
Merge branch 'ntlm-authentication-SOAP-1021' into maintenance

Conflicts:
	pom.xml
	soapui-installer/pom.xml
	soapui-maven-plugin-tester/pom.xml
	soapui-maven-plugin/pom.xml
	soapui-system-test/pom.xml
	soapui/pom.xml