DMD 2.066 compatibility.
importPaths added to dub
debug config
wrapper strcuts are assignable
program binary constructor
binary supprt fixed
CL* structs are assignable.
setArg fixed, wrapper verbosity tuned
GDC 4.9.1 compatibility
Buffer error handling fixed. Exception should be thrown before construction of the wrapper.
Merge pull request #11 from unbornchikken/master

DMD 2.066, GDC 4.9.1 compatibility and minor fixes / imporvements