paypro: fix chain validation for browser.
paypro: asn1.js debugging - try to get tbs buffer.
Revert "paypro: asn1.js debugging - try to get tbs buffer."

This reverts commit 3c7aeb4f62c27305294f95eb8875b370b2407227.
paypro: more debugging.
Revert "paypro: more debugging."

This reverts commit b406eeadffe65d7bdf292abd3bb48d3e42cfa7ec.
paypro: fix browser kjur usage.
paypro: attempted debugging with KJUR.
Revert "paypro: attempted debugging with KJUR."

This reverts commit 5788fdbb52a42e8e4a1841f5d67af9afef5e3082.