update to 10.6.0

BR flexiblas for Fedora and lapack, openblas and atlas for EPEL
adapt armadillo-devel accordingly

armadillo.spec

@@ -1,6 +1,6 @@
 Name:           armadillo
 Version:        10.6.0
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        Fast C++ matrix library with syntax similar to MATLAB and Octave
 
 License:        ASL 2.0
@@ -47,7 +47,7 @@ than another language like Matlab or Octave.
 
 %package devel
 Summary:        Development headers and documentation for the Armadillo C++ library
-Requires:       %{name} = %{version}-%{release}
+Requires:       %{name}%{?_isa} = %{version}-%{release}
 Requires:       libstdc++-devel
 Requires:       arpack-devel
 Requires:       hdf5-devel