Multiple Improvements to KGet

by mat69 for KDE

* changing the file properties (name etc.) while downloading * option to manually add download sources to multithreaded transfers * improving Nepomuk support * passing digital signature to KGpg * repairing downloads * gui to create Metalinks * multi-source downloads Depending on my progress I'd also add more features. * easy file tagging * support for downloading videos from mms sources * checking of md5sums * enhance the Import Links dialog