[CLN-list] CLN switched to C++11

[Richard B. Kreckel]

Hi,

I've just just bumped the minimum C++ language support for the compiler 
to C++11.

I did this because C++11 is a better language and it's widely supported 
by now. Sticking to C++98 would require us to sometimes write convoluted 
patches.

All in all it's a minor thing: configure makes sure that proper compiler 
options are chosen and the change doesn't even break the ABI. Still, I 
thought I should announce this here.

All my best,
    -richy.