Added version number to installer title (and stripped space after "Insta...

All of the values defined for "installer.title" in [izpack-core] (https://github.com/izpack/izpack/tree/master/izpack-core/src/main/resources/com/izforge/izpack/bin/langpacks/installer) include a trailing space.

Also, it may be useful to see the application version along-side the application name in the installer's title area.