[BB10] Added materials used to publish Fahrplan in BlackBerry World.

These include: 480x480 application icon, 1920x1186 featured image,
screenshots and texts from New In this Release field (ChangeLog.txt).
Merge pull request #88 from leppa/bb10

Materials used to publish Fahrplan in BlackBerry World.
Merge branch 'master' of https://github.com/smurfy/fahrplan into parseroptimisations