DOC: matrix_rank
DOC: more matrix_rank docs
MAINT: remove use of ``reload`` from f2py.  See gh-4139.
BUG: fix complex norm of higher order

asfarray truncates the complex part, so it must be avoided for complex
types.
Closes gh-4156.
DOC: f2py manpage, use minus instead of hyphens for options
Merge pull request #4166 from juliantaylor/man-hyphen

DOC: f2py manpage, use minus instead of hyphens for options
DOC: move f2py documentation under doc/ and link its user guide with Sphinx
DOC: fix up f2py user guide formatting
DOC: split up f2py user guide + markup fixes
DOC: f2py: Numeric -> numpy
MAINT: remove unused file
DOC: f2py: minor fixups
DOC: f2py: update numpy.distutils part a bit
DOC: f2py: more Numeric -> numpy updating
DOC: f2py: fix some typos etc
Merge pull request #4168 from pv/f2py-docs

DOC: Move f2py docs under doc/ and link to Sphinx docs
Merge pull request #4163 from juliantaylor/complex-norm-fix

BUG: fix complex norm of higher order
Merge pull request #4158 from rgommers/f2py-no-reload

MAINT: remove use of ``reload`` from f2py.  See gh-4139.
Merge pull request #4149 from argriffing/doc-matrix-rank

DOC: matrix_rank
TST: add 32 bit travis tests

Implemented by setting up a chroot in the travis VM and moving all the
test logic, including bento build, to a single script.
This is still reasonable fast, about twice as slow as the normal tests.
When Travis updates to a newer OS it can be replaced by standard cross
compiling.