ROBODoc robodoc

Removed unused function.

Completed code for specifying specific syntax highlighting options.

Removed reference to smgl docbook generator

Added UPGRADE to distribution

Cross compile under cygwin

Removed part to generate documentation.

Cleaned up unused option switches

Changed document title in multidoc mode to show source file name (It looks less cryptic, and makes more sense).

- Removed folding code
- Changed actions variable to bitfields
- Removed RB_MSVC defines
- Prepared more user controll over --syntaxcolors feature

Completed header types sorting priorisation.
Now it is possible to specify an optional header type priority for each headertype entry in the configuration.