Add a startOpen option so tab will start open.

startOpen will run the toggle function once the tab
has finished loading. This will cause the tab to open.
Having it slide open reinforces to the user that this they
can toggle this functionality.
wet-boew-slideout-open is default for open tab

Adding the class wet-boew-slideout-open to the slideout tab will
default the tab to the open state on page load.

It still slides open after load to imply that it's a tab.
Minor JScript formatting
cleanup
Merge pull request #1 from berubs/slideout_start_open

Move defaultOpen to correct scope, got rid of unnecessary jquery selection.
Merge pull request #1086 from CalvinRodo/slideout_start_open

Add a startOpen option to the SlideOut Tab so tab will start open.