LRDOCS-466 formatting and typos
Backported Cody Hoag's commit - clarified portal predefined settings and added new "site map" section
Backported Cody Hoag's - Updated Developer Mode section, wordsmithed summary, and inserted transistions
LRDOCS-466 Edit some of predefined settings.
LRDOCS-466 Give an example/more detail on site name settings
LRDOCS-466 Added concrete example of site name conflict
Add code ... spacing for other examples
LRDOCS-466 Themes - Edit predefined settings
Themes - formatting
DevGuide themes - create new header IDs
DevGuide hooks - renumber figures
06-hooks - format code
04-themes-dev... - wrap code to 80 columns
Merge pull request #525 from jhinkey/LRDOCS-466-6.1.x

LRDOCS-466 6.1.x - Themes update backport