Added nettle cryptographic functions.
Replaced existing algorithms with nettle equivalents.
Added support for sha224, sha385, sha512 and ripemd160 hashes.
Updated tests for hashes.
Added support for hmac-sha1.
Updated tests for hmacs.
Updated the documentation.
Added support for BCrypt encryption and salt generation.
Added tests for built-ins `crypt()' and `salt()'.
Updated the related documentation.
Moved hash/hmac functionality from list to crypto files.
Fixed spelling error.
Added autoconf support for detecting /dev/random.
Seed random number generator from /dev/random.
Fix bloopers.
Added `random_bytes()' builtin.
Added tests.
Added documentation.
Added SOSEMANUK stream cipher.
Integrated SOSEMANUK into random number generation.