param: Implement property lookup for ParamSpecs
param: Implement property lookup for ParamSpecs

https://bugzilla.gnome.org/show_bug.cgi?id=665432

djdeath/gjs,mtwebster/cjs,pixunil/cjs,djdeath/gjs,magcius/gjs,pixunil/cjs,pixunil/cjs,endlessm/gjs,djdeath/gjs,pixunil/cjs,endlessm/gjs,djdeath/gjs,mtwebster/cjs,magcius/gjs,endlessm/gjs,mtwebster/cjs,djdeath/gjs,endlessm/gjs,magcius/gjs,pixunil/cjs,mtwebster/cjs,magcius/gjs,mtwebster/cjs,magcius/gjs,endlessm/gjs