When doing a "batch train" (eg, selecting multiple messages and saying
"Delete as" or "Recover from",) the DB was saved in between each and every
message.  Now only saved at the end (which was always the intent)
Move OE specific stuff out from UserInterface.py to oe_mailbox.py
Move OE specific stuff out from UserInterface.py to oe_mailbox.py.

Make PyChecker more happy.
Default to background filtering being on for new versions.
Fix the link to the Frequently Reported Bugs
When a frozen executable, we come a mini-installer EXE for the DLL.
See the comments for more information.
Reflect that background filtering now defaults to enabled.
Mark options as experimental/deprecated in options docstrings.
A beginning at a more userfriendly interface to the testing setup.
At the moment to use this, replace the ProxyUserInterface class in sb_server
with the TestTools one (all the old stuff is still available) and go to
http://localhost:8880/cv - it should be straightforward from there.
(I'll post a patch to -dev as well).

Note that the option to use Outlook Express as the source for testing
data doesn't quite work yet.  The 'standard' and 'cache' ones do, from
the testing I've done so far.
Sendmail annotates the Received: header with "(may be forged)" if it thinks
the sender is forging its identity.  This shows up on infrequent occasions
but is much more strongly associated with spam than ham.  Guarded by
options["Tokenizer", "mine_received_headers"] like the rest of the Received:
header mucking.
Added nonedge regime, corrected comment on expire4months regime.
Binary version failed to check for most recent version.
Hack Version.py to reflect a later version for test binaries.  I will
fix this properly soon, but not now.
Add a couple of links to the sb_server binary readme (which still sucks!)
Along with checking Outlook isn't running, check Outlook's mail transport
also isn't running, and that an existing sb_server isn't.

Fix uninstall problem - uninstall should be 100% clean, assuming Outlook
isn't running.

Few other minor fixes
Install sbicon.ico, and the images etc referenced by the sb_server readme.
Add a little 'outlook register' utility.
Another attempt at [ 830865 ] No dialog context-help button on Win9x -
dialogs must not use a "modal frame" on Win9x for this to work apparently!
Show the Outlook welcome html doc, and update version accordingly
default_bayes_customize.ini was going into the wrong directory.
make state key a manifest constant - should have done this ages ago...