Rename Signal.keepIf to Signal.filter
Rename Signal.keepIf to Signal.filter

laszlopandy/core,vilterp/core,bradurani/core,rgrempel/core,simonh1000/core,Dandandan/core,isaacsanders/core,eeue56/core,martinos/core,colinmccabe/core,martinos/core,Pisys/core,rgrempel/core,ThomasWeiser/core,eeue56/core,suryagaddipati/core,alexiamcdonald/elm-core,laszlopandy/core,alexiamcdonald/elm-core,Dandandan/core,colinmccabe/core,suryagaddipati/core,isaacsanders/core,Pisys/core,vilterp/core,bradurani/core,rick68/core,ThomasWeiser/core,rick68/core,simonh1000/core