minor
Merge branch 'master' of https://github.com/talgalili/RcppDend.git
old_* functions in the new imports_dendextend.r file

assign_dendextendRcpp_to_dendextend - remove assign of old_ functions (we might as well just copy them manually)
changed .hpp -> .h (for portability issues, props to Kurt Hornik)
added Kevin Ushey to Authors@R list (thanks to his patch)
changed .hpp -> .h (some missed ones)
dendextend 0.3.3 is intended to be shipped to CRAN. (first release!)