Sync to Wine-20050628:

Sync to Wine-20050628:
Phil Krylov <phil@newstar.rinet.ru>
- Implemented EM_GETTEXTLENGTHEX RichEdit message.
Krzysztof Foltman <wdev@foltman.com>
- added support for \ulnone (turning underline off)
- support for basic subscript and superscript
- untested support for text offset
- Emit \tx for user-defined TABs.
Dmitry Timoshkov <dmitry@codeweavers.com>
- Make remaining OLE interface vtables const.
Stefan Huehner <stefan@huehner.org>
- Fix some more -Wstrict-prototypes warnings.
Vitaly Lipatov <lav@etersoft.ru>
- Allow null pointers for EM_GETSEL message (as MSDN says).
Robert Shearman <rob@codeweavers.com>
- Richedit classes should be global.

svn path=/trunk/; revision=17041