Added AES-128-BCM cipher, possibility to set iv-length on BCM-mode and allow empty text to be 'encrypted' for computational purposes.
Remove commented out lines
Remove commented out lines
Removed long lines and some commented out code
Merge branch 'master' of https://github.com/AKoetsier/aead

Conflicts:
	lib/aead/cipher.rb
Removed unused code
Merge pull request #3 from AKoetsier/master

Added AES-128-GCM cipher with some extra options