Adding -march=native to optimization flags.
Replacing binary search in find_lower() with linear search for small nodes.
Rewriting speedtest to measure both set and map types, also including tr1 unordered containers.
Adding speedtest-tune, an adapted speedtest previously used to measure binary search threshold.
Removing $Id$ svn/cvs/rcs artifacts.
Changing configure.ac to automatically detect availability of -march=native.