Bug#809700: python-astropy: build-dependency on python-matplotlib should be >= 1.5.0

[Steven Chamberlain <steven@pyro.eu.org>]

Package: python-astropy
Version: 1.1-1
Severity: normal

Hi,

python-astropy FTBFS on kfreebsd because at the time, we only had
python-matplotlib 1.4.2, and apparently that's insufficient now:

|     import numpy as np
|     from numpy import ma
| >   from matplotlib._path import (affine_transform,count_bboxes_overlapping_bbox,
|         update_path_extents)
| E       ImportError: No module named 'matplotlib._path'
| 
| /usr/lib/python3/dist-packages/matplotlib/transforms.py:39: ImportError
https://buildd.debian.org/status/fetch.php?pkg=python-astropy&arch=kfreebsd-amd64&ver=1.1-1&stamp=1449917975

I think python-astropy's Build-Depends should be updated to specifically
require a version >= 1.5.0?

Thanks.

-- System Information:
Debian Release: stretch/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: kfreebsd-amd64 (x86_64)

Kernel: kFreeBSD 10.1-0-amd64
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash