PHG Master Page Layout

[khaled]

Build master page layout for all PHG pages. Specifically, this should be 'Site' page generation and the corresponding CSS to support it. For general unit rendering, classes should be deployed (for example, see ticket #45).

The master page is composed of:

1. The background
2. The left navigation bar
3. The center column (blank, to be composed as needed by the page)
4. The right column
5. The footer
6. The advertisement header

Note that the individual pages may add or alter elements of the master page layout. Content for most of the page is also derived from the individual page.