Support Spree 2.2.2
Small documentation update for new Git location
Add test for line item adjustments

Fixes #101
Don't ask for shipping information

Spree gathers shipping in the address step, so it is unnecessary to
request this from paypal. This removes the prompt for a shipping address
in the paypal interface, which should be a better customer experience.

Fixes #109
Workaround for #103
Add ssl_allowed to PaypalController

Previously, when `redirect_https_to_http` was enabled, this would
redirect (or issue 426) when requested with SSL. Obviously SSL should be
allowed (if not enforced).

Fixes #105
Fixes #108
Merge pull request #95 from Daan-/patch-1

Small documentation update for new Git location
Merge pull request #94 from cloudrck/2-2-stable

Support Spree 2.2.2
Only include additional tax adjustments so that total matches to get through PaypalExpress checkout
Merge pull request #120 from godaddy/paypal_with_inclusive_tax

Only include additional adjustments so that total matches to get thr...
Merge remote-tracking branch 'spree/2-2-stable' into 2-2-stable