Absolute path to fix deployment issue
Merge branch 'master' of github.com:resolve/datashift_spree

Conflicts:
	datashift_spree.gemspec
Fixes issue with data not being stored for products with no variants

Products with no variants were failing when processing empty variant_price and variant_sku fields. That was fine, but meant that other data e.g. weights and dimensions wasn't being saved.

- disabled super call when processing variant_price and variant_sku