allow the attribute argument to be other types

Author: lindahua

src/nodes.jl

@@ -315,6 +315,8 @@ function set_attribute(x::XMLElement, name::ASCIIString, val::ASCIIString)
 	return XMLAttr(a)
 end
 
+set_attribute(x::XMLElement, name::ASCIIString, val) = set_attribute(x, name, string(val))
+
 function set_attributes{P<:NTuple{2}}(x::XMLElement, attrs::AbstractArray{P})
 	for (nam, val) in attrs		
 		set_attribute(x, string(nam), string(val))