Version 1.5 released

Yesterday I tested, tagged and packaged up the latest code and released it as version 1.5. This rolls up recent bug fixes and adds support for Jcc 1.1. A bridge to XTAPI service providers has also been released (in a separate jar due to licencing restrictions).

With the XTAPI bridge, there are now 10 service providers that have been developed for GJTAPI.