Merge pull request #11 from PhilipDavis/master

Updated the tools to use SKU fields instead of storing a GUID in metafields
Update SkuCode to match filing practices
Add disabled SKU field to consigneditem form
disable sku form field for albums
show actual sales and remaining totals
Utilities for Lift stuff
Minor improvements to ConsignorPage
More meta fields to products and variants

metafields stuff`
Fix track editing bugs
Improve typeahead search on edit page
Put download tool in package, add to build
Add "compilation" flag to album
Add bandcamp to social links
S3 MP3s for tracks
fit social-related null pointer (ugh)
Fix facebook and bandcamp url forms
use relative typeahead url
do not update on blank social data
Add download sales app
Improved sales upload and download