renaming raaz-hash-sha to raaz-hash
moved Raaz.Hash module to the raaz-hash package
moving Arbitrary instances for Word*LE/BE, BITS and BYTES to Raaz.Types
moved Raaz.Test.CryptoStore to raaz-primitive
exposing the Raaz.Test modules
moved the test suites to raaz-primitive
getting rid of the raaz-tests package fixes #73
getting rid of dependencies on raaz-tests
Moving hash tests to raaz-hash
moved Raaz.Primitives.Hash to raaz-hash
Merge some package reorganisation

1. The package raaz-hash-sha now is called raaz-hash and it has all
   hash related stuff. This fixes #71

2. This merge also removed the raaz-tests package which leads to further
   cleanup. This fixes #73.