Ruby 2.0 changed `respond_to?` to return false for protected methods.

Passing in true explicitly overrides this behavior.

http://tenderlovemaking.com/2012/09/07/protected-methods-and-ruby-2-0.html
Merge pull request #1 from abscondment/ruby2.0

Ruby 2.0 changed `respond_to?` to return false for protected methods.
travis
1.0.3 is brewing
remove 1.8 from travis.yml
remove Bulk entirely, just use Matcher now
don't allow self-dups if needles==haystack
added scorer
move scoring to own module, remove duplicate accessors/options