Various small bug fixes and cleanup:

- synchronizes navigation scroller
- fixes bad uses of jQuery animate method
- makes source name no longe required
- other minor code cleanup
- upgrades example page to use Bootstrap 3.1.1

Fixes taitems/jQuery.Gantt#107
Closes taitems/jQuery.Gantt#111
Update minified file
Merge pull request #145 from taitems/develop

Merge changes and fixes from develop branch