Remove get_browser() from core

Hello together, i think it's time to deprecate the function get_browser(). The reason is simple: Since the browscap.ini file has grown a lot this function does need way too much time, see here for example http://stackoverflow.com/questions/12067641/get-browser-slowing-down-page-load-any-alternative The underlying browscap.ini file is still a very resource to use and there are very good official packages out there to use it https://packagist.org/packages/browscap/browscap-php I also compared the browscap.ini file to other UserAgent parsers around and it looks still good http://thadafinser.github.io/UserAgentParserComparison/results/index.html Alternative is only an optimization for this function, but i think it's not worth, since the offical package is good. What you guys think? Best regards Martin