Add new Struct5500.pas files
Add pre-processed Struct5500 files

This clears the compiler directives out of the original sources.
Preprocessor used is [ppp](http://wiki.delphi-jedi.org/wiki/Pascal_Pre_Processor).
Add AnsiChar support on struct_parser
Fix string concatenation in struct_parser
Limited Struct const expression calculation
Add formatted Struct5500.json
Add support for Python2.6 ordereddict
Fix file permission
Add .gitignore for *.pyc files
Fix for version parsing in definitions file

Probably uncessary since definitions is going away in favor of struct_parser.