Support for 3.1.0

[ajmyers01]

Is there any plans for updating for Spree 3.1.0 ?

[raid5]

What are the issues with Spree 3.1? I may be integrating this gem into a Spree 3.1.1 app.

[raid5]

Oh I see...it won't even let you install the gem due to incompatible dependencies. I'm getting the following errors on bundle install:

Bundler could not find compatible versions for gem "spree_core":
  In snapshot (Gemfile.lock):
    spree_core (= 3.1.3)

  In Gemfile:
    spree_active_shipping was resolved to 3.2.0.alpha, which depends on
      spree_core (< 4.0, >= 3.1.0)

    spree_shipstation was resolved to 1.3.2, which depends on
      spree_core (~> 1.3)

Running `bundle update` will rebuild your snapshot from scratch, using only
the gems in your Gemfile, which may resolve the conflict.