trunk and branch no longer compilable

[Uwe Stöhr]

Since http://www.lyx.org/trac/changeset/29735 I can no longer compile LyX:

> D:\LyXSVN\LyX1.6.x\src\support\unicode.cpp(233) : error C2039:
> 'data' : is not a member of 'std::vector<_Ty>'

regards Uwe