packaging broken

[mwjackson]

Hi guys, seeing another pip install failure on our build server as of release 1.7.3

Mixlib::ShellOut::ShellCommandFailed

Expected process to exit with [0], but received '1'
---- Begin output of "bash" "/tmp/chef-script20151105-4556-o9zodr" ----
STDOUT: Collecting rdflib (from -r requirements.txt (line 1))
Downloading rdflib-4.2.1.tar.gz (889kB)
Collecting statsd (from -r requirements.txt (line 2))
Downloading statsd-3.2.1-py2.py3-none-any.whl
Collecting lshash==0.0.4dev (from -r requirements.txt (line 3))
Downloading lshash-0.0.4dev.tar.gz
Collecting knowsis.commons[stats](from -r requirements.txt %28line 4%29)
Downloading https://repo.fury.io/knowsis/
Collecting isodate (from rdflib->-r requirements.txt (line 1))
Downloading isodate-0.5.4.tar.gz
Collecting pyparsing (from rdflib->-r requirements.txt (line 1))
Downloading pyparsing-2.0.5-py2.py3-none-any.whl
Collecting SPARQLWrapper (from rdflib->-r requirements.txt (line 1))
Downloading SPARQLWrapper-1.7.3.tar.gz
Complete output from command python setup.py egg_info:
Traceback (most recent call last):
File "", line 20, in
File "/tmp/pip-build-uBrAyp/SPARQLWrapper/setup.py", line 45, in
requirements = list(parse_requirements('requirements.txt', session=PipSession()))
File "/home/knowsis/releases/7283cfc3f18343475889e947570c2f1a295f5c36/env/lib/python2.7/site-packages/pip/req/req_file.py", line 77, in parse_requirements
filename, comes_from=comes_from, session=session
File "/home/knowsis/releases/7283cfc3f18343475889e947570c2f1a295f5c36/env/lib/python2.7/site-packages/pip/download.py", line 416, in get_file_content
'Could not open requirements file: %s' % str(exc)
pip.exceptions.InstallationError: Could not open requirements file: [Errno 2] No such file or directory: 'requirements.txt'

[davidread]

requirements.txt is a new file and it looks like it needs adding to the MANIFEST.in