Version 0.9.1 (pre-release)

• Return random values on integer ranges > PHP_INT_MAX (thanks @CodesInChaos)
• Determined CSPRNG preference:
  1. mcrypt_create_iv() with MCRYPT_DEV_URANDOM
  2. /dev/arandom
  3. /dev/urandom
  4. openssl_random_pseudo_bytes()
• Optimized backend selection (thanks @lt)
• Fix #3 (thanks @scottchiefbaker)