Some may have seen my March 2 files.  I reworked many things.

March 3, 1993.

	Rewrote both squeeze and tifflink.

	- No longer uses "find", but walks through the directories itself.

	- Allows directories on the command line.

	- Does not follow symbolic links of directories.

	- Now works on directories or tiff files with spaces in their names.

	- "all" will get files that start with a ".", like ".dir.tiff".

	- No more error if there are no tiff files. (just does nothing)

	- Better data structures for tifflink, using a hash table to store
	  file information, and stat()ing files only once now.

	- Much faster.