v0.5.0-rc.1

This is the long awaited 0.5.0 RC1 release.
This release includes way too many changes for them to be listed here, but one of the key feature is the rewrite of the navigation engine.

Some translations might not be completed at the time of this release. If you spot a mistake or a missing translation, please let us know : http://wiki.navit-project.org/index.php/Translations

If you are using Android, you can become a beta tester : https://play.google.com/apps/testing/org.navitproject.navit

Feedback is welcome!