Release v3.0.3

NLO EW pp processes for mixed corrections (with both jet clustering and photon isolation) supported; independent variation of renormalization and factorization scales; NLO EW for lepton colliders: running QED alpha, support for massive initial leptons, NLL electron PDFs implemented; NLO QCD POWHEG matching for single-flavor hadron collider processes; event files for decay processes supported; WHIZARD core code now uses Fortran submodules; bug fix: correct normalization for processes with CIRCE2 beam spectra + EPA + polarization