Plumb insecure flag to functests

The problem arises when running functests against pre-existing
clusters configured with self-signed certificates. As far as
security goes, doing that is rather useless, but it happens.
Such testing worked previously, but with the switch to Requests
in the client, we must plumb "insecure" flag. There's no other
way to do it in Requests, no environment variable, anything.

Change-Id: I94a61b60de8ee0529652c8c4a1ab9894c7cdb589
Add profiling middleware in Swift

The profile middleware provide a tool to profile Swift
code on the fly and collect statistic data for performance
analysis. An native simple Web UI is also provided to help
query and visualize the data.

Change-Id: I6a1554b2f8dc22e9c8cd20cff6743513eb9acc05
Implements: blueprint profiling-middleware
Print pipeline names in the reported pipeline

When current code modifies the pipeline, it prints the entry point
names instead of the names used to construct the pipeline. This is
inconvenient because a sysadmin cannot copy and paste from the log.

We already save the pipeline name into contexts in most cases, so
the fix simply reuses that to provide friendly names.

Fixes bug: 1311802

Change-Id: Ic76baf1360cd521f140fa1980029ccbce58f1717
Fixed several Python3 syntax errors

Change-Id: I8634ddb31da0297c06e39b968ce1a209b0d78614
Added a tox job for running flake8 under Python 3

Change-Id: I04a78cc5e3613d1d765d716633bca297bf7207b6
Merge "Fixed several Python3 syntax errors"
Add targeted config loading to swift-init

This allows an easier and more explicit way to tell swift-init to run on
specific servers.  For example with an SAIO, this allows you to do
something like:

swift-init object-server.1 reload

to reload just the 1st object server.  A more real world example is when
you are running separate servers for replication.  In this example you
might have an object-server/public.conf and
object-server/replication.conf.  With this change you can do something
like:

swift-init object-server.replication reload

to just reload the replication server.

DocImpact
Change-Id: I5c6046b5ee28e17dadfc5fc53d1d872d9bb8fe48
Merge "Added a tox job for running flake8 under Python 3"
Merge "Add profiling middleware in Swift"
Make the new xprofile tests optional.

On Lucid at least, xprofile doesn't work. While others try to figure out the
underlying issue, this patch would just skip the tests if the profiling code
can not be imported.

Change-Id: I0fee3f729742cc727edc2adabb4ed782bea7798f
Change the default token logged length to 16

Based on comments from deployers at the Juno OpenStack summit,
limiting the default logged token length (to, by default, prevent
tokens from being fully logged) is a good idea.

Change-Id: I58980e85329d99de41f1c08f75e85973452317b1
Merge "Change the default token logged length to 16"
Add ability to remove subsections from /info

Change-Id: Ic881065962cf5f69f7a5b64f6e38d9e6e1f8fd18
taking the global reqs that we can

Change-Id: Icfdeeab14e90728aa8167ad6587d51e9b10cb846
added Benchmarks/Load Generators section

Change-Id: Ie4b12b91ab07987e4f9cf2d1b7d24961d22cfd37
Merge "Add targeted config loading to swift-init"
Merge "added Benchmarks/Load Generators section"
Merge "taking the global reqs that we can"
New log_max_line_length option.

Log lines can get quite large, as we previously noticed with rsync error
log lines. We added a setting to cap those, but it really looks like we
should have just done this overall limit. We noticed the issue when we
switched to UDP syslogging and it would occasionally blow past the 16436
lo MTU! This causes Python's logging code to get an error and hilarity
ensues.

Change-Id: I44bdbe68babd58da58c14360379e8fef8a6b75f7
Fixed a handful of typos

Change-Id: I8cb2de27818332be587df7321ef567f8399910a9