Add new config option 'raw', which is meant to toggles encode/decode
Only call  _encodePath and decodeURIComponent when hasher.raw is false
Set up simple tests for raw hashes
simplify hasher.raw logic. see #59
simplify _escapeRegExp
wrap decodeURIComponent into try/catch to avoid errors. closes #57
add bower.json and bump version to 1.2.0