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 branch 'slideout_start_open' of https://github.com/CalvinRodo/wet-boew into slideout_start_open