Automatic removal of backup and config core plugins since chef will
manage those functionalities.
Minor formatting.
Fixed syntax error, renamed 'default' to 'node'.
Bug fix: Deleting existing directory needs to be recursive.
Bug fix: Correct path for VERSION and double quotes in bash.
Added checksums to sshcommand and pluginhook.
update gem dependencies for test-kitchen migration
Introduce a project CHANGELOG. Resolves #9

Conflicts:
	CHANGELOG.md
Strainer is obsolete. Remove Strainerfile
Added .vagrant/ to .gitignore.
Removed Gemfile and Rakefile for now.