Licensed under Apache 2.0
Merge branch 'master' of github.com:DataDog/chef-datadog
Added a license
add `node['datadog']['agent_version']` attribute

if this attribute is left unset, the existing behavior of "install the
latest version the first time the recipe is run, then never change it
again" is maintained.
Allow repository installation to be optional

Fixes issue #48.
Merge pull request #49 from kiall/issue-48

Allow repository installation to be optional
Merge pull request #45 from dcrosta/agent-version

add `node['datadog']['agent_version']` attribute