Cleaned up the API for class/structure/function names to follow the wxWindows convent...

Cleaned up the API for class/structure/function names to follow the wxWindows conventions (mostly prefixing wx to all of them).  Backward compatability is maintained by keeping the old names calling the new functions, or typedef-ing the old names to the new names.  The old names can be totally disabled at the end of the file by changing the #if 1 block that surrounds the old names
Undid RRs last change, as it breaks backward compatabilty with using this class with 1.6x (GetData() is still a supported function, and is used in dozens of other places in this file, so it could not have broken compilation).
Added a param to GetWhereClause() so that now the LIKE operator can be applied to strings rather than EQUAL

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@6765 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775