Fixed a active section bug

When the current section covered the VP and matched exact pixel height, the condition for active status was failing
Updated semver
Updated load-grunt-tasks
Updated grunt-contrib-clean
Updated grunt-contrib-concat
Updated grunt-contrib-jshint
Updated grunt-contrib-qunit
Updated grunt-contrib-uglify
Updated grunt-contrib-watch
Updated Node version
Updated travis yml to node 0.10.*
Removed ES5 option due to ES5 being enabled by default
2.3.0
Merge branch 'master' into bugfix-active-section
2.3.1
Updated Changelog for 2.3.1