Config/INIFile: fix formatting of header comments
Error: close #16; added simple Error object
JSONParser: close #17; new file for JSONParser

- Moved JSON parsing from 'idgames_file_map.pl' to JSONParser.pm
XMLParser: added file copied from JSONParser
idgames_file_map.pl: close #23; add --start-at debug param
idgames_file_map.pl: close #25; Handle JSON/XML parser errors
db_bootstrap.pl/INIFile: handle errors reading/writing INI file
wadindex_schema.ini: update checksum values