DES: Fix memory leak with CTR mode
Merge pull request #4 from phpseclib/master

Sync
3DES/Rijndael/AES: Fix memory leak with CTR mode

Related to: https://github.com/phpseclib/phpseclib/issues/77
Merge pull request #78 from petrich/master

3DES/Rijndael/AES: Fix memory leak with CTR mode
DES: Fix memory leak in OFB mode
Merge branch 'master' of https://github.com/phpseclib/phpseclib
TripleDES, Rijndael: Fix overflow in OFB mode
DES: $block wasn't defined
Rijndael, TripleDES: $block not defined in these either
BigInteger: revamp base-10 regex

new Math_BigInteger('-09') gave 0 back as a number in GMP mode
BigInteger: fix special case for base-10 / bcmath

echo new Math_BigInteger('-') when in bcmath mode would output '-' - not '0'
$plaintext should be $ciphertext
SFTP: Don't do stat if lstat fails
SFTP: CS adjustment
SFTP: Revamp file type detection and add truncate method

Also clean up some code
SFTP: Use stat instead of lstat for size()
SFTP: make mode an alias of permissions for stat
SFTP: rename variable to correct case
Random: CS adjustment
AUTHORS: add more developers