Add a specialization of the 'StrictlyUpperMatrix' class template for sparse matrices
Add a specialization of the 'StrictlyUpperMatrix' class template for sparse matrices

amaniak/blaze-lib,amaniak/blaze-lib,ironm73/blaze-lib,byzhang/blaze,wdv4758h/blaze-lib,lsalamon/blaze-lib,nyotis/blaze-lib,wdv4758h/blaze-lib,gnzlbg/blaze-lib,honnibal/blaze-lib,honnibal/blaze-lib,nyotis/blaze-lib,gnzlbg/blaze-lib,byzhang/blaze,ironm73/blaze-lib,ironm73/blaze-lib,lsalamon/blaze-lib,nyotis/blaze-lib,byzhang/blaze,gnzlbg/blaze-lib,amaniak/blaze-lib,honnibal/blaze-lib,lsalamon/blaze-lib,wdv4758h/blaze-lib