Fix the compile time checks in the assignment operators of the 'UpperMatrix' class template
Fix the compile time checks in the assignment operators of the 'UpperMatrix' class template

ColinGilbert/blaze-lib,dorofiykolya/blaze-lib,lsalamon/blaze-lib,amaniak/blaze-lib,ColinGilbert/blaze-lib,nyotis/blaze-lib,dorofiykolya/blaze-lib,honnibal/blaze-lib,dylanede/blaze-lib,dorofiykolya/blaze-lib,dylanede/blaze-lib,wdv4758h/blaze-lib,lsalamon/blaze-lib,honnibal/blaze-lib,byzhang/blaze,byzhang/blaze,lsalamon/blaze-lib,wdv4758h/blaze-lib,gnzlbg/blaze-lib,ColinGilbert/blaze-lib,dylanede/blaze-lib,wdv4758h/blaze-lib,amaniak/blaze-lib,gnzlbg/blaze-lib,honnibal/blaze-lib,wsavoie/blaze-lib,amaniak/blaze-lib,gnzlbg/blaze-lib,nyotis/blaze-lib,nyotis/blaze-lib,ironm73/blaze-lib,ironm73/blaze-lib,ironm73/blaze-lib,wsavoie/blaze-lib,byzhang/blaze,wsavoie/blaze-lib