Added test vectors for HOTP and TOTP algorithms.
Renamed vectors/otp to vectors/oath
Updated vectors to include secret.
Fixed error in totp test vectors.
add X509_verify_cert_error_string
Merge pull request #591 from reaperhulk/fix-590

add X509_verify_cert_error_string (fixes #590)
Fixed #576 -- improve the readme
Merge pull request #587 from Ayrx/otp

Added test vectors for HOTP and TOTP algorithms.
Merge pull request #580 from public/openssl-gen-rsa-key

Generate RSA Keys with OpenSSL
Fixed the language decl for htis block
Phrase more precisely
Merge pull request #593 from alex/better-readme

Fixed #576 -- improve the readme
reorganize contributing into development section
fix some indentation and a missing newline
add explicit backend selection examples in a code block
move around some material on the reviewing doc page
be accurate when telling users what CryptGenRandom uses under the hood
Merge pull request #594 from reaperhulk/reorganize-contributing

Reorganize contributing into development section
less confusing language
typo