fix invalid function overloading thanks to issue #13 by nonsensery.
fix invalid function overloading thanks to issue #13 by nonsensery.

mhaddl/martinhartlorg,cliss/camel,mhaddl/martinhartlorg,cliss/camel,benhager/camel,cliss/camel,benhager/camel,DataMcFly/camel,mhaddl/martinhartlorg,DataMcFly/camel