Add in-repo BIP70 extension registration page
Define a deadline for returning funds via refund_to.

See discussion "BIP 70 refund field" on bitcoin-dev.
Require including intermediate certificates in a BIP70 payment request.
steps to recalculate address from confirmation code

also fixed some typos
Merge pull request #36 from petertodd/bip70-extensions

Add in-repo BIP70 extension registration page
Merge pull request #51 from voisine/temp

steps to recalculate address from confirmation code
Merge pull request #53 from trezor/master

introduce BIP-0043 and BIP-0044
Merge pull request #22 from schildbach/bip70-recommend-intermediate-certs

Recommend including intermediate certificates in a BIP70 payment request.
Merge pull request #48 from schildbach/bip70-refund-deadline

Define a deadline for returning funds via refund_to.
Merge pull request #56 from trezor/master

fix typos in BIP-0043 and BIP-0044
Minor grammatical & spelling corrections
Merge pull request #57 from e4xit/patch-1

Minor grammatical & spelling corrections
C# implementation

Github link to a C# implementation
Merge pull request #58 from NicolasDorier/patch-1

C# implementation