Avoid conflict with getRobotsR and getFaviconR when subsite.

Previously gitit2 didn't work well as a subsite when the main
site defined getRobotsR or getFaviconR, since it exported these
itself.  Now it exports getGititRobotsR and getGititFaviconR
instead, so there is no conflict.

Closes #3, I believe.
Rough code for initializing wikidata if it doesn't exist.

Note:  the markup help is screwed up because the HTML gets
stripped out. Redo with a grid table.

Also, we'll eventually need a wizard to create a config
directory.
Updated TODO