Update bg locale
Put bango back as default provider on payments-alt

Regression from
https://github.com/mozilla/webpay/commit/ea1e8a5e46c75a180f5c301f5a0dcf44098ef204#diff-dd105a0d42e09344f9547443a623c831L520
Merge pull request #507 from chilyashev/patch-3

Update bg locale
Revert "Put bango back as default provider on payments-alt"

This reverts commit 6fead7de4614f7aa453a0d4a5a8c19ea624d9764.
Use SPA wait-to-finish for spartacus (bug 1032316)