Add support for Labelary API Business SaaS Endpoint

This release adds support for the Labelary API Business SaaS Endpoint

Credits to @basex #10

v0.5.0

This is a breaking change for some users

In this release if the response is multiple pages all will now be returned by default.

The previous behaviour was to return just the first page.
The new behaviour is to return all pages.

To restore the previous setting of returning the first page and ignoring subsequent pages:

# config/initializers/labelary.rb
Labelary.configure do |config|
  config.index = 0 # this is an index, 0 for page 1, 1 for page 2 and so on, '' for all pages (default)
end

https://rubygems.org/gems/labelary/versions/0.5.0

0.3.0

Update Faraday dependencies
Bump version