ghc7.8 packages version bump
Added GHC 7.8 to travis
Merge dependency bumps to work with ghc-7.8.1
Context added in Raaz/Primitives.hs
Renaming and added imports in Hash/Sha-/Instance.hs and Primitives.hs
Context added in Primitives/Hash.hs
Removed redundant imports in raaz-primitives/Raaz/Test/Cipher.hs
Context added in Raaz/Test/Gadget.hs
Context added in SHA1
Context added in SHA256
Context added in SHA224
Context added in SHA384
Context added in SHA512
Context made instance of Eq class in /raaz-hash/
Added compression functions in Raaz/Cipher/AES/Internal.hs
Renamed AESIV to AESCxt in Raaz/Cipher/AES/Ref/Type.hs
Context added in Raaz/Cipher/AES/Block/
Context added in Raaz/Cipher/AES/CBC
Context added in Raaz/Cipher/AES/CTR/
Context added in Raaz/Cipher/AES/ECB