wadptr 3.6

• A summary table is now printed after compression, listing how many bytes were saved and through which methods.
• The program doesn't abort any more if a level is encountered that has invalid sidedef references. Instead, a warning is printed, and the level is skipped.
• Larger graphics can now be squashed (the limit was previously 320x200 and is now 1024x240).
• Squashed graphics are now detected more accurately. Some lumps in the list output were previously being described as unsquashed when they were actually squashed.
• Warning messages now include context about the file and the lump that were being processed.