Gwenhywfar

FOX16: Improved HtmlCtx code.

- added functions to access the dimensions of the rendered HTML text
- "BR" element now advances by a default line height if it stands alone
in a line
- added reference counter to GWEN_XML_CONTEXT

git-svn-id: https://devel.aqbanking.de/svn/gwenhywfar/trunk@1889 70169cfe-8b10-0410-8925-dcb4b91034d8

Started moving to new synchronous IO framework.

We need to adapt AqBanking as well because now the DBIO functions use
GWEN_SYNCIO pointers instead of GWEN_IO_LAYER pointers.

Since we don't need guiid and timeout arguments for the new sync io functions
they have been removed now....

merged branch aq3 back to trunk

git-svn-id: https://devel.aqbanking.de/svn/gwenhywfar/trunk@1393 70169cfe-8b10-0410-8925-dcb4b91034d8