Various sidebar/toolbar changes

Here's what's different:
- Redlinks colored red on left sidebar (the color is brighter than the normal redlinks to make it easier to see against the page background)
- Redlink color changed on user toolbar to match that of the left sidebar
- Fixed x-index so "tools" toolbar displays below user toolbar
- Page names capitalized in left sidebar (this makes the actual page name clearer)
- All other left sidebar options such as "discussion," "create," etc. are indented, matching the right sidebar