We are not using the limit flag in the actual run_pep8 method; removing
that from scripts. Operationally, pep8 has been enforcing a limit of
zero for awhile; this finishes that realization.

Also, all pep8 reports now appear under the reports/pep8 folder, rather than
per-system.

should be 'not in'

We've transitioned many lettuce tests to bok-choy. It no longer
makes sense to keep LMS acceptance in two shards (each taking less
than 5 mins to run the actual tests).

Bok choy will now be broken as follows:
* shard 1
* shard 2
* shard 3
* default shard (i.e. 'none of the above')

We use our shards to break up work and reduce overall test time by leveraging
multiple test systems.

This will help with rollout of TE-720 and any future new shards.

add script to upload/download pip cache directories from S3

update all-tests.sh to use pip-download-cache from S3

update pip-accel to version 0.22

This db name is reserved and used by mysql installations. This can cause
conflicts when trying to populate our own 'test' database on mysql.

Conflicts:
	scripts/reset-test-db.sh

This db name is reserved and used by mysql installations. This can cause
conflicts when trying to populate our own 'test' database on mysql.

Some mysql debian packages do not grant mysql user as many permissions, and
we need to add them.