- rename \phpseclib\Crypt\Base to \phpseclib\Crypt\Common\SymmetricKey
- create BlockCipher and StreamCipher to extend SymmetricKey
- replace _string_shift with \phpseclib\Common\Functions\Strings::shift
* PSR2-1.0:
Fix indentation phpcbf did not fix.
Remove PSR2.Methods.FunctionCallSignature.SpaceAfterOpenBracket exception.
Use phpcbf to fix PHP code to ruleset.
Ignore coding guidelines in ANSI switch block.
Base code sniffer ruleset on PSR2 rather than PEAR.
Update PHP Code Sniffer to 2.3.3
Conflicts:
build/code-sniffer-ruleset-tests.xml
build/code-sniffer-ruleset.xml
composer.lock
phpseclib/Crypt/DES.php
phpseclib/Crypt/Hash.php
phpseclib/Crypt/RSA.php
phpseclib/File/X509.php
phpseclib/Math/BigInteger.php
phpseclib/Net/SFTP.php
phpseclib/Net/SSH1.php
phpseclib/Net/SSH2.php
tests/Functional/Net/SFTPUserStoryTest.php
tests/Unit/Crypt/TwofishTest.php
