Added download button to detailview;
Added addtab method to MainActivity;
Changed TabsAdapter to inherit from FragmentStatePagerAdapter instead of FragmentPagerAdapter (just in case);
Added Pending DownloadStatus and set it as desfault of DownloadResponse;
Added Progress to DownloadResponse;
Added DownloadMap (extends hashtable<DownloadKey, downloadpackage);
Added DownloadKey class (contains index and md5sum field);
Added DownloadMap class to handle download packages to SharedObjectsHelper;
Added DownloadPackageAdapter class (own implementation of BaseAdapter, uses the DownloadMap of SharedObjectsHelper as collection);
Added downloadTabAdded field to SharedObjectsHelper;
Added DownloadListFragment;