Zoldak/jenkins sitespeed

The base requirements now use an updated verison of ansible (1.9), so we
do not need to have this install step.

Add profile support to enhanced networking task

Switch to using db.serverStatus instead of mongostat

Rotate mongo logs

Explanation: if mongo is set with systemLog.logRotate='reopen', when it
receives a SIGURS1, it'll close and reopen its log file handle.

Max/readd reverts

Feanil/update ansible

adding gz extension in the blacklist

Changes were originally introduced in f02f890a, PR #2218

Changes were originally introduced in 2c53e32c, PR #2217

Changes were originally introduced in 02cda120, PR #2214

Install analytics stack dependencies

Max/wrong mongo

This reverts commit f02f890a, reversing
changes made to 2c53e32c.

Reason: added to mongo play instead of mongo_3_0 play

This reverts commit 02cda120, reversing
changes made to e4848f95.

Reason: changes were added to mongo role, not mongo_3_0

This reverts commit 2c53e32c, reversing
changes made to f376391b.

Reason: changes were added to mongo role instead of mongo_3_0

Add aws role to mongo play

log-mongostat.sh.j2 accidentally put in wrong location

DEVOPS-2551 Proctoring configuration

Add mongostat logging

Added a dummy date in the date_joined

It was causing 500 internal server errors because after
sanitization it would be set to null but a valid value would be
needed for a couple of actions on the website, like assigning
students to programs and assigning students to courses.