Merge pull request #167 from willkelly/master

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Change dsh group name back to 'glance'

Originally, it didn't look like you could update an existing dsh group so the
idea was to define a new one for glance user.  However, there was a
misunderstanding what the group attribute did but fortunately a bug existed
in the dsh cookbook where it'd never get used.  That bug has since been fixed
and it also appears that dsh groups can now be updated, so we just revert to
calling it glance.
Merge pull request #168 from mattt416/change_dsh_group

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Add contribution guidance

Add CONTRIBUTING.md that points to the same document in chef-cookbooks
Add mention of the contribution document in the top of the README.md
Merge pull request #169 from claco/contributing

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ha clustering set from rabbitmq settings
Merge pull request #170 from rackerjoe/master

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Add missing glance_api_process_name attr

This attribute was missing in the Ubuntu platform
options, causing the Monit config to get all wonky.

Fixes DE273 and rcbops/chef-cookbooks#549
Merge pull request #171 from DavidWittman/de273-process-name

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DE291 Add configuration options and defaults for RBD image store
Adding the rest of the RBD config attributes
Add attribute for show_image_direct_url config option
Merge pull request #172 from odyssey4me/DE291

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remove selinux-context-restore GH577
Merge pull request #173 from jrcloud/de294-remove-selinux-context

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Add optional SSLCertificateChainFile to glance-api endpoint
Set a Nil value default attribute for chain_file
Add optional SSLCertificateChainFile to glance-registry endpoint
version bump
moving glance-image-sync script into the cookbook