Merge pull request #156 from schnitzeltony/dev

CMakeLists.txt: enable c++11
add hawaii_ prefix to autogenrated member functions

really fix many errors like:

| git/src/compositor/shell.h:66:10: error: 'void Shell::shell_bind_resource(QtWaylandServer::hawaii_shell::Resource*)' marked override, but does not override void shell_bind_re

Signed-off-by: Andreas Müller <schnitzeltony@googlemail.com>