Converted default block size values to strings as well
Converted default block size values to strings as well

jfederico/Hilary,timdegroote/Hilary,Orodan/Hilary,ExC0d3/Hilary,stuartf/Hilary,nicolaasmatthijs/Hilary,nicolaasmatthijs/Hilary,Orodan/Hilary,jfederico/Hilary,simong/Hilary,simong/Hilary,ExC0d3/Hilary,mrvisser/Hilary,timdegroote/Hilary,mrvisser/Hilary,stuartf/Hilary