Fixed warning in Ruby 1.8.7 when requiring 'bencode' with verbose warning level:
  "lib/bencode/parseio.rb:3: warning: method redefined; discarding old peek"
I decided to move the peek method into the Parse class to fix this problem.
Fixed warning when requiring 'bencode' using Ruby 1.9.2 and verbose mode:
  "lib/bencode/core_ext/hash.rb:12: warning: assigned but unused variable - error"
Merge pull request #7 from Dirklectisch/warnings

Fixed verbose level warnings