Add a few comment translations.
Fix shipping method sample data
- 9442383 required shipping methods to have at least one shipping
  category assigned
Start the installation instructions for people.

[Fixes #3007]
Removed localeapp dependency.

We can still use the gem to push translations to localeapp.com by installing it independently of spree.  Localeapp seemed to be causing issues with `rake test_app` as well so we're going to remove it.

[Fixes #3024]
Ignore localeapp API keys, etc.
Remove localeapp stuff
Minor updates to en.yml
Product page title test [Fixes #3027]
Fix stock transfer translations

[Fixes #3030]
Delegate Spree.t to Rails TranslationHelper

This way we get all the nice features Rails t() helper offers, mainly
displaying reasonable strings for missing translations.

At this point core test suite should be all green. I've remove a couple
i18n specs which were translating to :en locale. I don't think that make
sense since :en is the default locale. Other translations specs pass now

[Fixed #3023]
Fix scss import.

[Fixes #2932]
Put variables back where it was.

[Fixes #2422]
add the template file for generating the .rspec file. this was causing
"Could not find "rspec" in any of your source paths. Your current source
paths are: " [Fixes #3031]
Add request spec for backend new order process [Fixes #3022]

Fix order details and shipping method request specs

[Fixes #3000]
[Fixes #3032] When OrderInventory#verify is given a specific shipment, only remove variant from that shipment
Test to display order number when order is shown
Less obfuscated check for order#completed? [Fixes #3034]
Reload shipment after removing variant item via api

Fix broken spec on api build. The item was being removed properly but
the controller still returned the old obj instead of the new one with
the item removed
Force select2-rails to 3.2.1

select2-rails 3.2.2 breaks all capybara helpers in Spree that depends on
the label tag for attribute. e.g.

    <%= label_tag :add_variant_id, Spree.t(:name_or_sku) %>

    Instead of:

    <label for="s2id_add_variant_id">some text</label>

    will generate:

    <label for="s2id_autogen1">some text</label>

see https://github.com/ivaynberg/select2/commit/519070b11da9347cf1542d26fc59a83b0c3fd934

wtf select2 ..

Most of backend request specs were failing due to this
Only reload shipment if it's persisted [Fixes #3037]

Fix remaining backend failing specs