Fix build with master

- fixed identifiers, now after the renames in master passed
- fixed windows build
- fixed config.m4 with possible libstdc++ linkage bug

So far tests past on master/windows.
It can be here, only #ifdef'ed
On Aug 27, 2014 6:38 AM, "Joe Watkins" <notifications@github.com> wrote:

> In ustring.cpp:
>
> > @@ -22,6 +22,8 @@
> >  #include "config.h"
> >  #endif
> >
> > +#include "unicode/unistr.h"
>
> We can't include this here, it has to be in backend only.
>
> —
> Reply to this email directly or view it on GitHub
> <https://github.com/krakjoe/ustring/pull/13/files#r16757160>.
>