Add support for debian and rhel platform families.
Disable Excon ssl_verify_peer.
Bump version to 0.5.1
Add build-essential as a dependancy
Include build-essential cookbook (default recipe)
Add default attributes file to set build-essential to run at compile time
Merge pull request #8 from ichilton/master

Build Essential Dependancy
resolve merge conflict
Merge remote branch 'upstream/master'

Conflicts:
	libraries/dnsimple.rb
	metadata.json
	metadata.rb