Improve unit tests for correlate function.
Improve unit tests for correlate function.

Generate unit tests dynamically, and supported all basic types. Use
Fortran order for test arrays, for easier comparison with matlab.

git-svn-id: 003f22d385e25de9cff933a5ea4efd77cb5e7b28@5850 d6536bca-fef9-0310-8506-e4c0a848fbcf

jasonmccampbell/scipy-refactor,scipy/scipy-svn,lesserwhirls/scipy-cwt,lesserwhirls/scipy-cwt,lesserwhirls/scipy-cwt,scipy/scipy-svn,scipy/scipy-svn,jasonmccampbell/scipy-refactor,jasonmccampbell/scipy-refactor,lesserwhirls/scipy-cwt,scipy/scipy-svn,jasonmccampbell/scipy-refactor