Separating runtime requirements from development requirements

[cclauss]

requirements.txt includes:

• autopep8==1.4
• beautifulsoup4>=4.5.1
• coverage>=4.3.4
• coveralls>=1.1
• dicttoxml>=1.7.4
• feedgen>=0.5.1
• Flask>=0.12
• futures>=3.0.5
• html5lib>=0.9999999
• Jinja2>=2.9.5
• lxml>=3.7.2
• pymongo>=3.6.0
• pytest>=3.0.6
• pytest-cov>=2.4.0
• requests>=2.13.0
• webencodings>=0.5
• defusedxml>=0.5.0
• mock>=2.0.0

But the checked requirements are not required to run query-server. They are only required to test query-server. There presence in runtime images 1) slows the creation of runtime images, 2) increases the size of runtime images, and 3) increases the launch time of runtime images.

Most projects create a requirements.txt and a separate requirements-dev.txt. Should we do the same?