relicense LGPLv2+

cullmann@altair:/local/cullmann/kf5/src/kate/kate/app> /local/cullmann/kate/kde-dev-scripts/relicensecheck.pl kateconfigdialog.h
Need permission for licensing:

- lgplv2+: michalhumpula
michalhumpula (   5 LOC): b657270f,51256c99,0a7f36a0,dfb7749a,01a42d7b

=> OK