add pytest to installation requirements

Because `get_annexstatus` moved to test utilities,
and because we use it in metalad, we have to
include pytest to the depencies for metalad.

Author: christian-monch

requirements-devel.txt

@@ -1,18 +1,17 @@
-six
 # replace the following line with the datalad version without
 # metadata code, when that is released, e.g.
-# datalad>=0.17.4
-git+https://github.com/mih/datalad.git@mnt-metadata-mv#egg=datalad
 coverage
+datalad>=0.18
+datalad-metadata-model>=0.3.6
 sphinx>=1.7.8
 sphinx-rtd-theme
 pyyaml
-datalad-metadata-model>=0.3.6
 pytest
 pytest-cov
+six
 
 # required for extractor tests
+ExifRead
 Pillow
 mutagen
-ExifRead
 python-xmp-toolkit

requirements.txt

@@ -1,9 +1,9 @@
 six
 # replace the following line with the datalad version without
 # metadata code, when that is released, e.g.
-# datalad>=0.17.4
-git+https://github.com/mih/datalad.git@mnt-metadata-mv#egg=datalad
+datalad>=0.18
 sphinx>=1.7.8
 sphinx-rtd-theme
+pytest
 pyyaml
 datalad-metadata-model>=0.3.6

setup.cfg

@@ -17,6 +17,7 @@ install_requires =
     six
     datalad >= 0.18
     datalad-metadata-model >=0.3.6
+    pytest
     pyyaml
 test_requires =
     coverage