+Whoosh 1.8.2 fixes some bugs, including a mistyped signature in
+Searcher.more_like and a bad bug in Collector that could screw up the
+ordering of results given certain parameters.
+Whoosh 1.8.1 includes a few recent bugfixes/improvements:
+- ListMatcher.skip_to_quality() wasn't returning an integer, resulting
+ in a "None + int" error.
+- Fixed locking and memcache sync bugs in the Google App Engine storage
+- MultifieldPlugin wasn't working correctly with groups.
+ - The binary matcher trees of Or and And are now generated using a
+ Huffman-like algorithm instead perfectly balanced. This gives a
+ noticeable speed improvement because less information has to be passed