Merge branch 'master' of github.com:bitpay/bitauth

Conflicts:
	.gitignore
	README.md
	package.json
Merge branch 'master' of github.com:bitpay/bitauth

Conflicts:
	.gitignore
	README.md
	package.json
Merge branch 'master' of github.com:martindale/bitauth
Remove unused crypto dependency

All the crypto is in bitcore.
Added feature to validate a SIN
Add travis config.
Merge pull request #14 from braydonf/feature/validateSin

Added feature to validate a SIN
Merge pull request #15 from martindale/travis

Add Travis Config
bump to bitcore 0.1.32
Merge pull request #16 from gordonwritescode/master

bump to bitcore 0.1.32
Replace `x-pubkey` with `x-identity`.
Merge pull request #6 from ryanxcharles/remove-unused-crypto-dependency

Remove unused crypto dependency
Update documentation for `x-identity`.
Add repository to package.json.
Merge pull request #18 from martindale/master

Add repository to package.json.
update package.json to include repository field
add space
Merge pull request #17 from martindale/identity

Replace `x-pubkey` with `x-identity`.
Merge pull request #19 from gordonwritescode/master

adds repository to package.json
Merge pull request #1 from bitpay/master

merge from bitpay