This reverts commit a5234f0a07230e0d8195687e033adfe4cc0ad522

The change broke trove on stable/liberty since it's a backward
incompatible change.

To avoid capping python-troveclient<2.1.0 in
stable/liberty global-requirements, we have to revert this
change, blacklist the 2.1.0 version in g-r master and
stable/liberty, and then release 2.2.0.

And the slave_of code can't be removed until the last
supported stable branch that uses it is end of life, which
is liberty-eol. For now we keep the slave_of argument in
the instance.create method, but emit a deprecation warning
if it's specified, and we never pass it to the trove API
for the create or edit operations since the API removed
slave_of in 0c94a5bae0aacff7fde9a9742b7d526096e51767.

Change-Id: I9b3ec6c101a89f30e61fc683808506c404e5474f
Partial-Bug: #1538506

This adds support in the python API and Trove CLI
for module maintenance commands.  These commands include:

    - module-list
    - module-show
    - module-create
    - module-update
    - module-delete

Partially Implements: blueprint module-management
Change-Id: I54d37025275dee4731ad49ebbd21612c4464e4c4

Now passing in the tenant_name as part of the os_options
and getting all the options from the Trove client instead
of the environment.

Change-Id: I19155463505500d1ca9a22ee9a58c80ff0c23ac2

Using the OS_ENDPOINT_TYPE environment variable if it exists,
otherwise falling back to the TROVE_ENDPOINT_TYPE environment
variable.

Change-Id: I74f108a32877a5f80bd65961ca965f9f686379d2
Closes-Bug: #1541515

Implements log file retrieval from the guest agent.  The contents
of the log file are pushed up to a swift container as a series of
objects that represent a subset of the lines in the log.

The following trove CLI commands are implemented:

trove log-list <instance>         : lists log files available on guest
trove log-enable <instance> <log> : enables writing to log file
trove log-disable <instance> <log>: disables writing to log file
trove log-publish <instance> <log>: publishes updates to swift container
trove log-discard <instance> <log>: discards published logs
trove log-tail <instance> <log>   : displays last lines of log
trove log-save <instance> <log>   : saves the entire log to a file

Change-Id: Ic15c455747b9f1966d83d7034c9b748ca5e2cce9
Co-Authored-By: Morgan Jones <morgan@tesora.com>
Co-Authored-By: Alex Tomic <atomic@tesora.com>
Co-Authored-By: Peter Stachowski <peter@tesora.com>