Rename variable dup -> duplicate to unbreak build (warning on global
shadowing).
rework tutorial according to new layout
Move storage backend prosa into users guide. Rework cmd line and config
Remove the storage backend descr
More 'about this document' type of text
Rework the storage text for clarity
First attempt at params
rst syntax
chapter on built in subs
Split the examples into sep files
Add strings to syntax doc
rework vars
various fixes
removed a .
Removed the subs chapter.

It's in it's own file now, based on the VCL manpage.
Merge intro / TOC
rework hiarchy