Switch to Oslo's config generator

This fixes the sample configuration to contain proper
config groups alongway.

Regenerate sample config with oslo's config generator.

DocImpact: Removes the deprecated memcached_server
option from DEFAULT (now in keystone_authtoken group)

Closes-Bug: #1206650
Closes-Bug: #1260322

Change-Id: I170715bfe6ec7dad9f7317e7bb56cbb68034c4ec
Fix Brick LVM test command parsing

The case reporting only one fake-volumes VG was never hit, which also
caused us to not test the lvcreate -T path.

Change-Id: If43d6aff5f90d6eca24b3df790d8ad3a86bfc8f3
Fixed a problem in iSCSI multipath

Multipathing during copy image to volume and copy volume to image
operations doesn't work properly if there are different targets
associated with different portals for a mulitpath device.

Change-Id: I65c93f3788020c944db0d3a55063a6415554ff11
Closes-Bug: #1266048
Hiding postgresql password in connection string

Closes-Bug: #1266804
Change-Id: Iafc820d6201acf5b563b62bd9f20a715901f1ab4
Add bool_type dictionary to test_migrations

A number of MySQL migration tests fail because the test case
is verifying that an sqlalchemy.types.BOOLEAN column was created.
When the column type is checked, however, mysql reports the type as
sqlalchemy.dialects.mysql.TINYINT.  The mismatch causes numerous
test cases to fail for MySQL.

This creates a dictionary for each engine being tested to handle the
different boolean types.

postgresql and DB2 encounter similar issues.  Subsequent patches
will make the appropriate changes for those databases.

Change-Id: I81cb3c6feeacf887f1f473ec54414e0e215d2c24
Closes-bug: 1260126
3PAR: Raise Ex when del snapshot with depend vol

Deleting a 3PAR snapshot can result in an HTTP Conflict error message,
such as when a volume is dependent on it.
Previously, this exception was not caught, and the state was set
to "Error_Deleting" with no recovery path.
The code was updated to catch this exception and raise a
SnapShotIsBusy exception with an appropriate error message.
The state reverts back to 'Available' allowing the user to try again
after removing the dependency.

Change-Id: Ibe8c5d581af10c85397c37993c49f8fc3bce8620
Closes-Bug: #1250249
Remove unused message from iogrp_data setup

The iogrp_data is initialized during do_setup loaded.
The vdisk_count is originally used but later removed.
In ValueException raised, the variable is no longer required.
Remove this will give a clearer message when 
ValueException raised.

Change-Id: Ib7b6c6a870ddd7932e8da1436d615f9ee458bd93
Closes-Bug: #1266321
Drop Chance/SimpleScheduler Implementation

This patch removes the implementation of ChanceScheduler and SimpleScheduler
as previous changes have made sure they are internally replaced by
FilterScheduler.

The "max_gigabytes" config option is deprecated and will leave it like that
for one more release before we can remove it.

DocImpact: "ChanceScheduler and SimpleScheduler have been deprecated and
their implementation have been removed from Cinder."

Implement bp: deprecate-chance-and-simple-schedulers

Change-Id: Ifb1cb25e3bb4cdf26fa3283336b83fce5c97141e
Merge "3PAR: Raise Ex when del snapshot with depend vol"
Merge "Fixed a problem in iSCSI multipath"
Merge "Remove unused message from iogrp_data setup"
Merge "Hiding postgresql password in connection string"
Merge "Add bool_type dictionary to test_migrations"
Print driver exception on retype

If the driver raises an exception, make sure it is printed. Also change
the logging level from info to error because an exception should not be
thrown under normal conditions.

Change-Id: I003959c3f7c7667124ef61911587012fd4e1d667
Closes-Bug: #1268294
Merge "Drop Chance/SimpleScheduler Implementation"
Merge "Fix Brick LVM test command parsing"
Merge "Print driver exception on retype"
Merge "Switch to Oslo's config generator"