ADDED download task class
ADDED DownloadManager
DELETED some things from the downloadtask
Merge pull request #1 from flubbes/fabian

Fabian
REPLACE String to AvailableGame Class @DownloadManager.java
ADD DownloadEventListener
UPDATE DownloadManager.java
UPDATE DonwloadManager

Comments
Merge pull request #14 from flubbes/jony

UPDATED newest version from jony