Delete last bits of bin/.  With the move to entrypoints these aren't
needed anymore.

Update CONF.bindir to default to
  os.path.join(sys.prefix, 'local', 'bin')

Part of blueprint entrypoints-plugins

Change-Id: I95250d3779433e7b85aaa889a873b16c86a7d2be

As part of the move of plugins to entrypoints, take advantage of the
entrypoints based console scripts, which will make our command line scripts
available for unittesting.

Part of blueprint entrypoints-plugins

Co-authored-by: Michael Still <mikal@stillhq.com>

Change-Id: I5f17348b7b3cc896c92263dd518abb128757d81f

The gettext.install() function installs a builtin _() function which
translates a string in the translation domain supplied to the install()
function. If gettext.install() is called multiple times, it's the last
call to the function which wins and the last supplied translation domain
which is used e.g.

 >>> import os
 >>> os.environ['LANG'] = 'ja.UTF-8'
 >>> import gettext
 >>> gettext.install('keystone', unicode=1, localedir='/opt/stack/keystone/keystone/locale')
 >>> print _('Invalid syslog facility')
 無効な syslog ファシリティ
 >>> gettext.install('nova', unicode=1, localedir='/opt/stack/nova/nova/locale')
 >>> print _('Invalid syslog facility')
 Invalid syslog facility

Usually this function is called early on in a toplevel script and we
assume that no other code will call it and override the installed _().
However, in Nova, we have taken a shortcut to avoid having to call it
explicitly from each script and instead call it from nova/__init__.py.

This shortcut would be perfectly fine if we were absolutely sure that
nova modules would never be imported from another program. It's probably
quite incorrect for a program to use nova code (indeed, if we wanted to
support this, Nova code shouldn't use the default _() function) but
nevertheless there are some corner cases where it happens. For example,
the keystoneclient auth_token middleware tries to import cfg from
nova.openstack.common and this in turn causes gettext.install('nova')
in other projects like glance or quantum.

To avoid any doubt here, let's just rip out the shortcut and always
call gettext.install() from the top-level script.

Change-Id: If4125d6bcbde63df95de129ac5c83b4a6d6f130a

The cfg API is now available via the oslo-config library, so switch to
it and remove the copied-and-pasted version.

Add the 2013.1b4 tarball to tools/pip-requires - this will be changed
to 'oslo-config>=2013.1' when oslo-config is published to pypi. This
will happen in time for grizzly final.

Add dependency_links to setup.py so that oslo-config can be installed
from the tarball URL specified in pip-requires.

Remove the 'deps = pep8==1.3.3' from tox.ini as it means all the other
deps get installed with easy_install which can't install oslo-config
from the URL.

Make tools/hacking.py include oslo in IMPORT_EXCEPTIONS like it already
does for paste. It turns out imp.find_module() doesn't correct handle
namespace packages.

Retain dummy cfg.py file until keystoneclient middleware has been
updated (I18c450174277c8e2d15ed93879da6cd92074c27a).

Change-Id: I4815aeb8a9341a31a250e920157f15ee15cfc5bc

Modules import nova.config for two reasons right now - firstly, to
reference nova.config.CONF and, secondly, if they use one of the
options defined in nova.config.

Often modules import nova.openstack.common.cfg and nova.config
which is a bit pointless since they could just use cfg.CONF if
they just want to nova.config in order to reference CONF.

Let's just use cfg.CONF everywhere and we can explicitly state
where we actually require options defined in nova.config.

Change-Id: Ie4184a74e3e78c99658becb18dce1c2087e450bb

This adds a new service called "nova-conductor" which will provide
services for nova-compute, such as completing database updates and
handling long-running tasks.

Right now, this just adds a fraction of the database-related work
so that we can proceed with incremental changes to nova-compute.

For compatibility/flexibility, both LocalAPI and (RPC)API classes
are provided. Users concerned with performance or compatibility
who wish to maintain compute-node-local database accesses can
set the [conductor] use_local=True, which will mimic the legacy
behavior.

DocImpact

Change-Id: Ib81d879f40b7daceeffad5af0631c7db68168661