Add missing semi-colons.

Reported by smoosh.
Merge pull request #239 from ioguix/semicolon

Add missing semi-colons.
Commit the latest stable build.

* Fix resolution bug in pie chart, fixes #242.
* Do not executte hit hidden series.
* Hide tracker if content null or undefined.
* Fix for mountain chart with preceding 0 value.
Rebuild the flotr2 after merging it with 'flotr2/master'