Get rid of C++11 (for now)
Currently there is no meaningful C++11 support on OS X. Unfortunately some C++11 code managed to sneak into the code base. This must be reverted. Also, all compilers should be configured to reject C++11 code.
(RM-542 from redmine: created on 2013-01-29 by Marc Zinnschlag, , closed on 2013-02-08 by Marc Zinnschlag)