Tests for payment status handling through ipn
Update pending reason only on valid transition
Merge pull request #762 from sharetribe/fix-ipn-handling

Update payment status only on valid transition
Require environment loading before task run
Merge pull request #765 from sharetribe/fix-retry-and-clean-tokens-task

Require environment loading before task run
wti pull
Endpoint to query async transaction op status
Use async paypal op for xhr transaction create
Show errors and prevent concurrent submissions
Async execution of create paypal payment
Detect when rejecting preauth payment fails
Css for sane loading spinner
fix javascript lint errors
fix according to review comments