relicense to LGPLv2+

cullmann@altair:/local/cullmann/kf5/src/kate> ../kde-dev-scripts/relicensecheck.pl part/script/katescripthelpers.cpp
Need permission for licensing:

- lgplv2+: michalhumpula
michalhumpula (  12 LOC): 51256c99,cf783245,bf5acc6f,1a5f5a78,5016261b

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

- lgplv2+: michalhumpula
michalhumpula (   1 LOC): 51256c99

Okd by Michal