Bugfix: Invisible link focus

Clearing those dotted box around links when selected.
KB categories split

Communication and security -->
/ Communication and networks
\ Security and privacy
KB Redesign

Content table redesigned, ready to implement collapsable articles list.
Bugfix: Adding Header and Footer

Adding what I forgot!
Bugfix: adding a missing div

MainContent Div closed.
KBContent Dashed CompSci group

Adding the CompSci super group .
KB Pages Lists

The pages lists display implemented.