Upgrade jQuery

--HG--
rename : data/rspec-formatter-webkit/js/jquery-1.4.2.min.js => data/rspec-formatter-webkit/js/jquery-2.1.0.min.js
Invert the sense of toggling with the test status labels
Add execution time to examples
Bump the minor version, update history.
Fix the manifest
Clarify history message
Add gemspec and Gemfile to the Hoe's ignorelist
Added signature for changeset 305c5b7f2ed0
Added tag v2.4.0 for changeset c13df60f1d07