Initial commit for Common Configurations update - basic "Common Hardware Setups" page created and graphics updated. Stub for "Advanced Hardware Setups" created. Menus updated.
Added most up-to-date Advanced Hardware setups page, graphics and menu changes.
Added PDF versions of Common and Advanced Hardware setup guides, and removed old PDF.
Found a mistake in Advanced Setups PDF, corrected now.
Minor changes to advanced hardware setups - missing language about plugging into switches added in web and print version.
Merge pull request #222 from opentechinstitute/issue-214

Adding to staging to see how it looks.

Added new Common and Advanced Hardware Setups modules to CCK