Allow localized display of date/time

I tried to display the date in Spanish. So, I inserted this line

    setlocale(LC_TIME, "es_ES");

in gource.cpp, inside

    void Gource::updateTime(time_t display_time) {

then built and installed, but date is still in English. I know the whole 
compile/install process is working because I have tested other [unrelated] 
changes and they worked.

Alternatively, gource could perhaps obey the global locale setting in one's 
system.

-- What version of the product are you using? On what operating system?

latest git commit 0d4a8693
Date:   Wed Jul 2 10:56:28 2014 +1200
Updated boost autoconf macros to fix multi-arch detection.
Bumped version number.

Thanks

Original issue reported on code.google.com by paconet....@gmail.com on 1 Oct 2014 at 8:41

bad-r0bot / gource

Allow localized display of date/time #227