Updated gemspec

Regenerated gemspec for version 0.5.1

Prepare release 0.5.0

Added new fixtures to manifest for inclusion in the gem.

Updated History and set version to 0.4.1

Updated History for the 0.4.0 release

Release 0.3.0

 * Remove double quotes from search results. Fixes #2

 * Updated history

Updated for release of 0.1.0

Final commit before 0.0.1