initial localization of pricing

Closes https://github.com/ongoworks/reaction/issues/113
Reference https://github.com/ongoworks/reaction/issues/176
Removes ConfigData collection, replaces with Shops collection
Replace numeral.js with accounting.js

Mainly so that we use currency / locale instead of language for
currency formatting. See:
https://github.com/openexchangerates/accounting.js
Rename Deps to Tracker

http://manual.meteor.com/#tracker
UOM, Currency Conversion, Meteor 0.9.4

Upgrade to Meteor 0.9.4 (and related packages)
Add Money conversion engine with openexchangerate.org as default
Add UOM for Issue https://github.com/ongoworks/reaction/issues/180
Default local development currency to USD
Doc for https

Fixes https://github.com/ongoworks/reaction/issues/172
Schema validation for parentVariant price/qty

Issue https://github.com/ongoworks/reaction/issues/163
Related https://github.com/ongoworks/reaction/issues/162
Merge pull request #29 from ongoworks/v0.1.8-pricing-localization

V0.1.8 pricing localization