Remove explicit request.uri_base from main layout

This saves Mike some time when making a copy of the site by using
`wget -m` to mirror it from the plack server.
Revert to using the project name for the index-tab

This is because the way the page titles are generated when we call
set_title_and_activate_tab uses the project name in the title. This
makes them consistent.
Set the project name to Wordfix
Create CSS for the main content container
Make the main container use CSS style
Add styling for hr elements

From http://css-tricks.com/examples/hrs/
Fix index content path (extra /)