Fix two wrong egg names

These are the only two egg names that are wrong in this file.  We have
to uninstall i18n-tools, because the distribution name changed.  The
lti-consumer XBlock hasn't changed named, we just had the wrong name in
the requirements file.

(cherry picked from commit 91a235a9)

Add versions to all non-dash-e installations

(cherry picked from commit a117416e)

Try the latest of pip and setuptools

(cherry picked from commit 041fede3)

Use latest pyparsing 2.0.x to avoid setuptools entanglement

With 2.0.1, and setuptools 34.0.2, errors happen like:

File "/edx/app/edxapp/venvs/edxapp-sandbox/local/lib/python2.7/site-packages/packaging/requirements.py", line 59, in <module>
    MARKER_EXPR = originalTextFor(MARKER_EXPR())("marker")
TypeError: __call__() takes exactly 2 arguments (1 given)

(cherry picked from commit 73519b35)
(cherry picked from commit 8d791b58)

Keep the sandbox reqs in sync

(cherry picked from commit 84b25dd8)

Pyparsing might need to be in pre?

(cherry picked from commit 4433edd0)

edx-i18n-tools is on PyPI, get it from there.

(cherry picked from commit 7f4ce79c)