0021949: Further improvements in reference documentation

0021949: Further improvements in reference documentation

Changes in command wgendoc:
- Syntax of arguments line changed "-arg=value"
- Added messages ("done", directories of generated files , errors)
- Doxygen output is captured to log file
- Synopsis of command is output by option -h
- Fixed CHM file generation
- Provided generation of Qt Help files (does not work with doxygen 1.8.2 due to its bug)
- Added report error on unrecognized arguments
- Araph in toolkit pages moved after the list of packages
- Inclusion of macros DEFINE_*_ALLOC into the class documentation avoided.
- Generation of graphical class hierarchy (huge) disabled.