Compute next version lazily at converge time
Compute next version lazily at converge time

... and give to delivery_github resource so that it will push
tags to GitHub

Signed-off-by: Robb Kidd <11cd4f9ba93acb67080ee4dad8d03929f9e64bf2@chef.io>

chef/supermarket,robbkidd/supermarket,robbkidd/supermarket,nellshamrell/supermarket,chef/supermarket,chef/supermarket,robbkidd/supermarket,chef/supermarket,juliandunn/supermarket,nellshamrell/supermarket,nellshamrell/supermarket,nellshamrell/supermarket,juliandunn/supermarket,chef/supermarket,juliandunn/supermarket,juliandunn/supermarket,robbkidd/supermarket