Updated .gitignore.
Use bit math to do resampling; fixes a slight error in the 4 bit resampling code.
Updated reference image for 4 bit grayscale.
Released chunky_png gem version 1.2.7.
Remove infinity test profile.
Small LICENSE fixes.
Add Ruby 2.0.0 to Travis config.
Small change to BENCHMARKS
Use https for ruby gems.
Fix 2.0.0 compatibility issue in test suite.
Fix Ruby 2.0 deprecation warning.
Better way of handling binary strings - should fix JRuby 1.9 issue.
Better signature check error message.
Force a binary signature check.
Released chunky_png gem version 1.2.8.
success. :else => [one thing, another thing] works
Fix FILTER_NONE glitching

- There were some nils flying around in the filter method dispatching logic. Just
  had to throw in a nil check.
- The spec had a FILTER_NONE byte where a FILTER_AVERAGE byte should have been.