Setting CPU share to "1" for containers.

This means all user containers will be lower priority than other Docker
containers on the compute node. (eg. machineshop & gatehouse)

It should also limit (but probably not contain) fork bomb damage.
Somewhat flasher front page.
Switching to icon font for logo.
Using Raleway font for navbar.

Raleway is used in the DIT4C logo, so it's a good fit.
Making version hover-over text, rather visible text.
Using DIT4C logo as site icon.