building subsection introduced; wok moved to dev guides section;
Requirements and Installation sections were interchanged;
some Unicode characters removed from .md files; \DeclareUnicodeCharacter{00A0}{ } instruction added into refman file
images insertion rolled back to dual html,latex insertion; mainpage now is processed (index.tex);
surplus part of overview has been removed
foundation_classes.md and technical_overview.md updated;
Reviewed step, tobj, xde and partly iges; Corrections in other guides.
Overview installation and requirements changes updated
OCCT documentation (Overview and User Guides) has been converted from MS Word files to text-based MarkDown format and added to OCCT sources, in the new subfolder 'dox'. The HTML and PDF articles can be generated from the sources using Doxygen and MiKTeX. See the file OCCT_Docs_HowTo.md for details on the new documentation system.
This branch includes:
- new folder structure for Open CASCADE documentation
- sources of almost all OCCT User Guides and Overview
- tcl and bat scripts, which allow to generate HTML and PDF articles
