Patch 0.21pre7 for 2.4.17

Simple changes regarding hash tables and some cleanups.
Now there's no need to enter a power of 2 number for the
maximum number of compressed pages any longer. It's not
increasing the hash table size in a dynamic way, but that
will be done soon. More details in the notes link below.

Notes
http://sourceforge.net/project/shownotes.php?release_id=51703

Download
http://prdownloads.sourceforge.net/linuxcompressed/patch-comp-cache-2.4.17-0.21pre7.bz2