1284884 Overlogging of failed container delete

Currently, when a user tries to delete a non-empty container, an
exception is raised and logged. There really is no need to log this
exception. Instead, the user should be given the error message (which
they are today) and the browser should redirect them back to the
referring page.

Change-Id: If18cee000ec5ac1c741b62e72002139dd087e272
Closes-Bug: 1284884
replace dict.iteritems() with six.iteritems(dict)

According to https://wiki.openstack.org/wiki/Python3 dict.iteritems()
should be replaced with six.iteritems(dict).

Change-Id: Ia2dcabbd071e1fcdf111ba83573785989a77aef0
Improve extend volume form

Add the current volume size to the extend volume form

Remove the progress bar when the volume status is error_extending

Change the success message to an info message when the extending
is in progress

Change-Id: Ic6bd00af393d1f74b2db1a9114b848aa5fe4bbc7
Closes-Bug: #1290544
Closes-Bug: #1318723
Database Launch Form shouldn't autocomplete

The form element on the Database Launch page should have the attribute:
autocomplete="off" set.

I finally found the mechanism to add attributes to workflow-forms, so
please ignore my first change-set.  :-)

Change-Id: I3f7f4a24580bd2fa5a40ed673a8d33d81e6e9659
Closes-Bug: 1316226
Upgrade jquery to version 1.10.2 with jquery-migrate

We are using an ancient version of jquery, and before unbundling it,
it would be nice to upgrade it. Unfortunately, some other libraries,
such as bootstrap.js, use some of the deprecated functions. That's
why we will need to have jquery-migrate.js until we upgrade those too.

This patch upgrades jquery.js to version 1.10.2, adds jquery-migrate.js
version 1.2.1, and fixes some of the deprecated stuff in the horizon's
own libraries.

Change-Id: Ifcb0a7132f365816794c180b5979f57ab23b513b
Merge "Database Launch Form shouldn't autocomplete"
Merge "Upgrade jquery to version 1.10.2 with jquery-migrate"
Merge "1284884 Overlogging of failed container delete"
Merge "Improve extend volume form"
Merge "replace dict.iteritems() with six.iteritems(dict)"