Merge pull request #138 from yarikoptic/bf-boto-dep

Add boto to install_requires since it does use it for s3 node

setup.py

@@ -39,6 +39,7 @@ def findsome(subdir, extensions):
     'core': [
         'datalad>=0.14.0',
         'scrapy>=1.1.0',  # versioning is primarily for python3 support
+        'boto',  # used directly by datalad_crawler/nodes/s3.py
     ],
     'devel-docs': [
         # Documentation