message: [setup.py] allow for range on boto library
diff: @@ -54,7 +54,7 @@ setup(
  scripts=['superset/bin/superset'],
  install_requires=[
  'bleach',
  - 'boto3==1.4.7',
  + 'boto3>=1.4.7, <2.0.0',
  'botocore>=1.7.0, <1.8.0',
  'celery>=4.2.0',
  'click>=6.0, <7.0.0', # click >=7 forces "-" instead of "_"
  