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 #12 from claco/contributing

Merged automatically by jenkins after successful build test
Update nova-network recipe with quantum services.
Merge pull request #13 from git-harry/master

Merged automatically by jenkins after successful build test
metadata.rb cleanup
Merge pull request #14 from rackerjoe/master

Merged automatically by jenkins after successful build test
Add ceph collectd plugin and recipe
version bump submodule
version bump
s/quantum/neutron/

for commits 7aaf979c42 and 0ab96e3c0f in nova-network cookbook.
Merge pull request #16 from invsblduck/havana_neutron_renames

s/quantum/neutron/
Version Bump to 4.1.3
Merge pull request #17 from rackerjoe/master

Version Bump to 4.1.3
move version out of metadata.rb into VERSION
Merge pull request #18 from rackerjoe/master

Merged automatically by jenkins after successful build test
ceph collectd plugin enhancements
Fix glance-api collectd plugin credentials
Fixes https://github.com/rcbops/chef-cookbooks/issues/614. Adds monit for all quantum/neutron services
Merge pull request #20 from jcannava/DE614

Merged automatically by jenkins after successful build test
Merge pull request #19 from odyssey4me/glance-plugin-fix

Fix glance-api collectd plugin credentials