Correct virtual_path for print buttons override

Fixes #34
Remove deprecated Versionfile
Remove extra bracket from _totals.pdf.prawn

Fixes #36
Fix styling of print invoice button
Remove bye partial
Find image using Rails asset pipeline
Reference @order variable within _totals partial
Allow to use numeric sequential invoice numbers
Depend on 2.2.0.beta
Depend on 2.2.0.beta
Only show eligible adjustments

Fixes #42
Only show eligible adjustments

Fixes #42
Add Gemfile + dependency on Spree 2.3.0.beta
Add rspec-rails dev dep
Switch to using Prawn 1.0.0

I couldn't work out how to make the PDFs look EXACTLY like they were before, but it's close enough
Switch to using Prawn 1.0.0

I couldn't work out how to make the PDFs look EXACTLY like they were before, but it's close enough

Conflicts:
	spree-print-invoice.gemspec
Create de.yml

German Translation
Update de.yml
Add German translations

Fixes #44
Add German translations

Fixes #44