Renamed the stack header with correct extension and changed the 'include' statements.
Redirected output to R console (cout becomes Rprintf).
Reverted some variable renaming proposed by Bo, but not justified by PTMTreeSearch.
PTMTS parameters added. New function to set PTMTS params to default values.
Modified documentation to present the scoring functions k, hrk, PTMTS.
Small corrections to the Rprintf calls.
Setting a 7th round to mrefine is now done only when PTMTS is selected.