Add the site grand total number of hits on the site's root page.

* Move daily hits graph CSS to main.css
Start a placeholder for a demographics page.

* Ditch the cdf and histogram pages.
Show browser family breakdown in the demographics.

* Add 'browsers' to mapReduce
* Show a table of browsers in the demographics page.
Show a pie chart for the browsers.
Display basic OS data.

* OS's are not yet broken down by family only, but by family/major/minor. :(
Start on a script to convert OS's to their parsed form
Use parsed OS data, if available
Separate OS's by family and major number.
Add device type breakdown.

* Use the OS name as a rough indicator of device type.
* Add new mapReduce type - os:form - maybe need a new name?
Merge branch 'demographics'