Using wrong variable to replace tenant.

The shift configuration was wrong because the user name was set as tenant.
Update repository json to tag specific json and handle case where latest tag is pushed
Added support for per-tag json updates. Also some pep8 cleanup
Merge pull request #225 from dustinlacewell/fix-arch-update

Fix arch update
Dockerfile: clean up

This changes the Dockerfile to make the following improvements:
- stop adding the universe repo
it's already in the latest stackbrew/ubuntu images by default
- merge the apt-get update and install operations
- remove the package lists in the same apt-get update & install step
Merge pull request #227 from unclejack/update-Dockerfile

Dockerfile: clean up
Corrected package name for nginx-extras in nginx.conf
Merge pull request #228 from shreyu86/bugfix-documentation

Corrected package name for nginx-extras in nginx.conf
use setuptools
Cannot push centos image to registry: Broken Pipe

The metadata of the jar content "_files"  is to huge to to store it in glance
as property since it contains every file of the uploaded TAR.

The problem can be simple solved using the storage_alternate.

fixes #235
Concise bash for default variable values

Switching to consistently use the {$XXX:-default} syntax
over the multi-line if [[ -z ]] syntax.
Merge pull request #236 from chilicat/issue-235

Cannot push centos image to registry: Broken Pipe
Merge pull request #237 from drnic/concise_bash

Concise bash for default variable values
Merge pull request #224 from chilicat/patch-1

Openstack glance/swift - Using wrong variable to replace tenant.
app: Don't require Bugsnag if we don't use it

With this commit, we delay any bugsnag-related import errors until we
actually need the bugsnag module (which may be never, depending on the
user's config).
Merge pull request #241 from wking/optional-bugsnag

app: Don't require Bugsnag if we don't use it
Fix log message

Properly uses the name of the method where the entry is emitted.
Merge pull request #243 from davidhoyt/patch-1

Fix log message
README.md: Add config/ prefix to config_sample.yml

This catches the docks up with 900d262 (Moved config to the config/
directory, 2013-12-09).
Merge pull request #240 from wking/readme-config-location

README.md: Add config/ prefix to config_sample.yml