Fix python3 tests

- use uncompressed data in mathematics* to workaround an error in python3.2
- do not test dynprog on python 3 (it requires pickled numpy data...)
- histogram kernel creates huge values when using order > 1 that are
lossy represented as ascii creating test failures. Use order = 1 for
tests
- fix tester for python3 and its debug mode
- fix typos in parameter/datatype and print out proper info messages
when results differ