default invoice template + rendering
template tweaks + shrimp config
add carrier wave, fog; first pass at invoice generation + uploading
Merge branch 'master' into invoice-generation

Conflicts:
	config.ru
	lib/invoice_service.rb
404 when no invoice
Merge branch 'simple-config' into invoice-generation

Conflicts:
	Gemfile.lock
	config/environment.rb
Merge branch 'simple-config' into invoice-generation
factor out css + convert to slim
invoice#due_at with config
template helper
shotgun preload
template wip
address info
refactor account countries
Merge branch 'simple-config' into invoice-generation
require only integer extension from active support
require only integer extension from activesupport
add lots of seller configuration info + implement in template
invoice template rendering
add host configuration