These lines served some purpose on SVN, but are now useless on Git. They
actually do harm as they might make people think their files are older
than they actually are.
To use exceptions do define('PHPSECLIB_USE_EXCEPTIONS', true).
To have the exceptions thrown by phpseclib be of a certain class define PHPSECLIB_EXCEPTION_CLASS.
- make it so '' is a legit password and doesn't unset the pw to pass bantu's unit tests (unit test could have been updated too but whatever)
- make it so not passing in any parameters to Crypt_RSA::setPassword() works without E_NOTICE or E_WARNING as per example in docs
- add missing phpdoc headers to File_ANSI
- cryan -> cyan in File_ANSI
