This update introduces a very fast way to ensure byte, short, and int
numerical processing using $b$[0], $i$[0], $s$[0]

Also fixes array and switch issues with char and Character, ensuring
that those always are integers (or in the case of switch, possibly a
string). 

Substantial cleaning/refactoring of ASTKeywordVisitor removes
duplication of code and makes the character business much clearer. 

Should possibly consider using an int for char rather than
single-character string. This would probably immensely simplify the
code.

Issue with GZ files within ZIP files.

Fixes a2s.ScrollBar, reduces painitMe comments

adds simplied MediaTracker that always returns immediately with TRUE