Spruce up the control panel

Structure things with extensible tabs.
More refinements to the control panel

Including adding a TiddlyWeb-specific control panel tab
Narrow the gap between tabs
Make sure we don't try to wikify the names of modules in the module listing
Add a demo control panel page for the Starlight theme

If you open the control panel and then use the tools sidebar to switch
themes to and from Starlight, you'll see this tab dynamically appear
and disappear
Remove tooltip, classes and styles from transclusion syntax

Now that transclusion doesn't generate any intrinsic elements we don't
have an element to attach the tooltip, classes and styles to.
Simplify the page controls by dropping the drop shadow

Makes the icons less blurry in Retina™ displays
Clean up the tools tab
Version update
Docs updates
Fix typo
Add host configuration to TiddlyWeb control panel tab
Merge remote-tracking branch 'upstream/master'