Merge pull request #494 from chjj/fix_paypro_example2

Fix Payment Protocol example in the browser
paypro: example - sign customer transaction after output scripts are altered.
Update Transaction.js

Global leak fix
Merge pull request #496 from digitaltangibletrust/master

Update Transaction.js
Merge pull request #495 from chjj/fix_paypro_example_sign

paypro: example - sign customer transaction after output scripts are altered
fix logging
fix logging 2
Merge pull request #497 from maraoz/fix/logging

fix logging
paypro: fix root certs.
paypro: verify the certificate chain.
paypro: use fedor's asn1.js to deal with DER certificates.
paypro: asn1.js - cleanup.
paypro: verify chain refactor.
paypro: use asn1.js in browser paypro.
paypro: fix root cert check.
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.