PCT-202

• .warnings file created in .pct subdirectory during compilation. Doesn't work with XREF-XML (bug reported to PSTS).
• Issue #120 : fixed .inc generation problem with XML XREF
• prolib.jar updated to extract files from command line
• PLReader updated to read memory mapped PL files
• Issue #122 : PCTCompileExt hangs when startup parameters are invalid