#5 Cumulated fixes for pas2dox

Fixes a number of issues for me:
- misrecognition of keywords in identifiers solved
- supports an arbitray number of base classes / interface implementations for a class
- all parent classes are marked as public
- "end" after a comment line made some trouble
- works with current compilers
- fixed some log output lines which didn't include comment markers
- doesn't have that many problems with local procedures any more
- no longer irritated by "label" statements
- no longer irritated by constants that aren't numbers

[Anonymous]

Fixes a number of problems