...so that it is only done once (see mail thread starting at
<http://lists.freedesktop.org/archives/libreoffice/2012-February/027058.html>
"User installation migrated onto itself").  Also, checking for the existence
of an old user installation needed to change from ucbhelper::Content::isDocument
to osl::FileStatus::getFileType, as the UCB is not yet initialized at the time
migrateSettingsIfNecessary is now called.

...see ebe26f72 "WaE: 'unused' attribute ignored when parsing type"
for the problem.

In removing tools/table.hxx usage, remove SvxFontTable and
convert to std::vector<SvxFontItem*> because it was only
being used as a temporary list, not a map.

Do not ask me how or why this works. There are things man was not meant
to know.

I _really_ love how libtool, when called without -no-undefined, silently
falls back to building a static lib (AFAICS without even trying to check
if there really will be any undefined symbols in the resulting dll).
Thank you, libtool author! I cannot express how much I enjoyed the hours
I spent figuring out what is happening there!

Until now the code has by accident added a property with the attribute
MAYBEVOID (which is that one which has the value 1), while the
intention obviously was to use BOUND|REMOVABLE. Whether this has
caused unintended consequences, or been harmless, and whether this fix
now then will cause unintended consequences, no idea.