While executing functional tests in trove project, with baseptyhon
python3 in change [1], there appears few incompatibilities
in troveclient.

All of them are directly related to differences in PY3 version.

This change removes these issues and will allow to execute functional
tests seamlessly.

Change details:
  * troveclient/compat/base.py - dict.iteritems was removed in PY3
    because dict.items now does the thing dict.iteritems did in PY2
  * troveclient/compat/client.py - json.loads expects string, and
    PY3 doesnt convert bytes to string. We have to use explicity call
    decode() which will decode given bytes to string
  * troveclient/apiclient/base.py - to avoid infinite recursion
    exception raised when pickling class attributes

[1] I9ee34642c700d1e6ba9c2f3891b7fa1f7f7e1e1d

Change-Id: I8989fd4798e80eae27408017e1543819a68b4ab1
Signed-off-by: Marcin Piwowarczyk <m.piwowarczy@samsung.com>

Enable Keystone v3 auth support in the compat client.
This is needed for the Trove integration and scenario tests which
use the compat client. The Keystone v2 APIs have been removed in
the Queens release and this stop-gap fix of putting Keystone v3
support in the compat client is needed to fix the Trove gate.

Change-Id: I60ea2188443d8905c03c24607703e69c6490420b

According to OpenStack Guideline[1], logged string message should be
interpolated by the logger.

Also, upgraded hacking requirement, to enable H904 check.

[1]: http://docs.openstack.org/developer/oslo.i18n/guidelines.html#adding-variables-to-log-messages

Co-Authored-By: jiansong <jian.song@easystack.cn>
Change-Id: I3f020b6bcb1b9bf6d18a3b4f738c13cccd1bbff8
Closes-Bug: #1596829

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

Adds the mgmt APIs for

1. Create datastore-version.
2. List datastore-versions.
3. Get details of a datastore-version.
4. Update the attributes of an existing datastore-version.
5. Delete a datastore-version.

Added the code to management.py and the unit-tests,
this code would help for writing integration tests to trove
for the newly added management-apis.

Change-Id: I915baa4c5c8bbe3f0483bcaeaa5ce95044d35bf7
Implements: blueprint datastore-registration-api

add the CRUD calls of configuration parameters mgmt calls

partially implements blueprint configuration-parameters-in-db
Change-Id: Iaaea946bdbcab91ca02e5e2cbf956a3980a461ab

adds clusters support to the troveclient.

Co-Authored-By: Ranjitha Vemula <rvemula@ebaysf.com>
Co-Authored-By: Michael Yu <michayu@ebaysf.com>
Co-Authored-By: Mat Lowery <mlowery@ebaysf.com>

Partially implements: blueprint clustering

Change-Id: I6ed2c4c79a17fcf8f14c587cab6a8ec3acaf319f

Allows datastore versions to be hidden from all users except those
explicitly allowed by their tenant. Implemented via a visibility
attribute for datastore versions (defaulting to 'public'), and a
datastore version member table for controlling access to non-public
datastore versions by tenant.

This commit provides the client functionality for integration tests
related to the datastore-visibility feature.

Implements: blueprint datastore-visibility
Docimpact: change to datastore version payload
Change-Id: Ic8024a631530ba295688d7e49e895f50cb2f32ef

Implements: blueprint trove-metadata

Change-Id: I4e498844afd2d2730fad2176dccaf1d61d8798c1

Reasons:
- F821 is disabled.
- H306 is disabled.
- H402 is disabled.
- H404 is disabled.

Changes:
- Updates tox.ini to enable F821, H306, H402 and H404 rules.
- Updates code for F821, H306, H402 and H404 violation.

Change-Id: I772270bb833ac774e080fc63e330d6b333f23de2