Add wp deploy task

Signed-off-by: Paul de Wouters <paul@hmn.md>
WP Deploy in package.json
Fix contributors and spacing
move screenshots
Bump version
Add build dir
changelog
Add assets dir
Merge pull request #46 from humanmade/add-wpdeploy

Add wpdeploy
Bump version
Merge branch 'master' into docs

Conflicts:
	Gruntfile.js