Simplify buildsystem.
Bind crypto_box_* family of functions.
Bind crypto_hash_* family of functions.
Bind crypto_scalarmult_* family of functions.
Bind crypto_verify_* family of functions (used internally).
Bind crypto_sign_* family of functions.
Bind crypto_secretbox_* family of functions.
Bind crypto_stream_* family of functions.
Bind crypto_auth_* family of functions.
Update README.
Update to use string_to_nocapture from not-yet-merged ctypes PR.