ENH: Add class for reading unformatted Fortran files
Change fortran_file/FortranFile API to match suggestions.

fortran module is now hidden
Corrected tests and doctest
DOC: Fixup documentation on FortranFile

Fix spelling mistakes
Move documentation from hidden module to class
Limit line widths
Warn if using dtypes which are not unsigned for record markers
MAINT: minor performance improvement

Merge two loops and move invariant of switch case out of inner loop.
Improves performance by 5% - 10% depending on the order.
MAINT: tell compiler that edge interpolation is less likely

This should be true for most cases where performance is relevant.
Improves performance by about 5% on images > (500, 500) with order three.
MAINT: add map_coordinate tests with non-continous arrays
ENH: Add canonical representation for lti objects
DOC: spatial/qhull: fix some documentation issues
ENH: spatial/qhull: allow obtaining the vertices of the convex hull

This is most useful for 2-D, where qhull computes a counterclockwise
ordering, which otherwise requires some clunky postprocessing.
add a still-failing test to this failed branch
ENH: stats: Some enhancements to the chisquare functions:

* Add the `axis` argument to stats.chisquare and stats.mstats.chisquare.
* Add the `ddof` argument to stats.mstats.chisquare.

Closes gh-2108 (trac #1583).
add a commit to make git not complain when I switch branches
ENH: begin the expm 2005 -> 2009 update; no tests yet
BUG: doing this commit because git told me to
TST: all tests pass, with default expm set to expm_2005
TST: tests pass, with expm_2009 as the default expm
MAINT: hide expm2, expm3
TST: do not import expm ecplicitly
TST: special/mpmath: the digamma failure was just too low dps
BUG: special: add an asymptotic expansion to zeta

This avoids underflows in zeta(s, a) for large a and not too large s