Merge branch 'witekma/new_dkfile_Lc2peta-eta-mumugamma' into 'master'
new dkfile for Lc2etap, eta2mumugamma
See merge request !1229 (merged)
(cherry picked from commit a3dd36c5)
95e2aebc new dkfile for Lc2etap, eta2mumugamma 4cdc2088 change eta decay model to ETA2MUMUGAMMA