GNU Go 3.3.21

GNU Go 3.3.21 is now available. Get it at:

http://www.gnu.org/software/gnugo/devel.html

actually this web page is not yet updated so if you
can't get it there get it from:

http://match.stanford.edu/gnugo/patches.html

In this release the experimental break-in code is the default.
This makes the engine slower. If you want to turn it off,
'configure --disable-experimental-break-in' before building.

Patches in this release:

splee_3_21.1. Revision of owl_strong_dragon(). 
paul_3_21.1. Repair ko threats evaluation. 
arend_3_21.5a. Persistent caching for break-in reading.
arend_3_21.4. Breakin revisions; inessential dragons handled differently
owl_stack_crash_3_21.1. Fixes a crash in semeai code moving owl stack
arend_3_21.6. 3 more NNGS regression tests. 
paul_3_21.2. Bugfix in do_owl_defend: copy eye data from previous level. 
configure_break_in_3_21.1. Configure option for --experimental-break-in. 
doc_console_3_21.1 
gunnar_3_21.2. Doc and --score revisions. 
gunnar_3_21.1. Semeai. Extends gunnar_3_20.17. Semeai ko awareness extended. 
arend_3_21.3. Bugfixes for --experimental-break-in. 
arend_3_21.2. Caching for --experimental-break-in. 
vcrepair_3_21.1. VC portability. 
evan_3_20.2. Regression html views. Documentation part is in regression.texi. 
warnings_3_21.1. Cast to avoid warnings. 
arend_3_21.1. Miscellaneous documentation updates.

Dan