Updated GPL to up to date version

The license text still had the old FSF adress so I updated it from
https://www.gnu.org/licenses/gpl-2.0.txt .

Refs #5698

Signed-off-by: Michael Friedrich <Michael.Friedrich@netways.de>
Fixed wrong-file-end-of-line-encoding for jquery-min.js

RPMLint was complaining about wrong-file-end-of-line-encoding in
jquery-min.js.
I just converted the file with dos2unix.

Refs #5698

Signed-off-by: Michael Friedrich <Michael.Friedrich@netways.de>