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 #32 from claco/contributing

Merged automatically by jenkins after successful build test
Add activebackup capability
Add default to avoid BGB, and for the Rightness.
Merge pull request #33 from Apsu/activebackup

Merged automatically by jenkins after successful build test
version bump submodule
Version Bump to 4.1.3
Merge pull request #35 from rackerjoe/master

Version Bump to 4.1.3
move version out of metadata.rb into VERSION
Merge pull request #36 from rackerjoe/master

move version out of metadata.rb into VERSION
Merge branch 'havana' of github.com:rcbops-cookbooks/haproxy

Conflicts:
	metadata.rb
issue #603: tighter monit regex for daemon process