0.3.5	(under development)

	o	new R function "cxxfunction" to generate an R function with inlined
	C++ code using the .Call calling convention. The function was introduced
	to accomodate the needs of the Rcpp family of packages. 
	
	o	new R functions "getPlugin" and "registerPlugin" to manage the 
	plugin system of cxxfunction. 
	
	o	The function package.skeleton (from utils) is made generic and a
	method is available to generate a package skeleton from a function 
	generated by cfunction or cxxfunction 
