Minor fix to random::shuffle

Use override safe substr call instead.
Update docblock for function

BC breaking changes to Hash and OTP

Improvements to the encryption code in Otp are b/c breaking. Because Hash relies on this, it also has b/c breaking changes. It's for the best!

Added array shuffling feature

Added array shuffling feature and unit tests for it.

Make encryption safer

Throw exception if some kind of error happens inside of the php encryption functions.

3.0.0

BC breaking changes to the AesCtr class. Function should now be faster and use less memory.

Minor changes

This tag addresses some minor flaws and fixes a test.

2.x

This version supports better key generation in the block cipher functions. However, this is a backwards breaking change. Anything encrypted with an older version will not be decryptable in 2.x.

Minor improvements

A few minor changes to improve logical flow.

1.0.0 Release

Latest and greatest release of Dcrypt with a cleaner API and support for AES-CTR mode.

Upgrade Notes

1. Support for block ciphers returning false has been removed. \Dcrypt\AesExp has been removed in favor of \Dcrypt\Aes. All block ciphers always throw an exception now.
2. \Dcrypt\Random::get() has been renamed to \Dcrypt\Random::bytes().

Added the AesExp class

1. Adds the AesExp class which throws an exception instead of returning false upon detecting malformed cyphertexts.
2. Updated unit tests.
3. Updated documentation.
4. Confirms PHP 7.0 compatibility.