Tweaks to the tab script and software sample

+ Don't show tabs and dendogram in basic environments
+ Add velocity('stop') calls so the tab interaction can be interrupted
mid-flight
+ Modify the jQuery plugin API so that I can initialize a tab structure
on the tablist or just on a tab (that shows immediately)
+ Since this always comes up, if the URL on load has a hash that is a
tab's panel, show that immediately

related to issue #21