BRANCH 2.4-DEV: fixed problem when unloading plugins and new manifest has stypes that don't exist
BRANCH 2.4-DEV: fixed problem when unloading plugins and new manifest
has stypes that don't exist

talha81/TACTIC-DEV,Southpaw-TACTIC/TACTIC,hsuchie4/TACTIC,southpawtech/TACTIC-DEV,talha81/TACTIC-DEV,Southpaw-TACTIC/TACTIC,southpawtech/TACTIC-DEV,CeltonMcGrath/TACTIC,CeltonMcGrath/TACTIC,mwx1993/TACTIC,CeltonMcGrath/TACTIC,talha81/TACTIC-DEV,CeltonMcGrath/TACTIC,diegocortassa/TACTIC,southpawtech/TACTIC-DEV,sadanandb/pmt,Southpaw-TACTIC/TACTIC,CeltonMcGrath/TACTIC,talha81/TACTIC-DEV,mwx1993/TACTIC,sadanandb/pmt,sadanandb/pmt,hsuchie4/TACTIC,diegocortassa/TACTIC,southpawtech/TACTIC-DEV,talha81/TACTIC-DEV,Southpaw-TACTIC/TACTIC,diegocortassa/TACTIC,mwx1993/TACTIC,talha81/TACTIC-DEV,diegocortassa/TACTIC,hsuchie4/TACTIC,mwx1993/TACTIC,Southpaw-TACTIC/TACTIC,diegocortassa/TACTIC,sadanandb/pmt,hsuchie4/TACTIC,Southpaw-TACTIC/TACTIC,mwx1993/TACTIC,sadanandb/pmt,diegocortassa/TACTIC,CeltonMcGrath/TACTIC,southpawtech/TACTIC-DEV,hsuchie4/TACTIC,hsuchie4/TACTIC,southpawtech/TACTIC-DEV,mwx1993/TACTIC