New ELPA 2015.02.001 release

If the user chooeses parameters for the QR-decomposition which are
not allowed an error has been produced. This error is caught now,
and the library aborts with a message

It is now possible to switch on more debug messages via
the environment variable "ELPA_DEBUG_MESSAGES=yes"

src/elpa2.F90

@@ -221,7 +221,8 @@ function solve_evp_real_2stage(na, nev, a, lda, ev, q, ldq, nblk,        &
        if (wantDebug) then
          write(error_unit,*) "solve_evp_real_2stage: QR-decomposition: blocksize does not fit with matrixsize"
        endif
-     stop "Do not use QR-decomposition for this matrix and blocksize."
+     print *, "Do not use QR-decomposition for this matrix and blocksize."
+     call mpi_abort(mpi_comm_world,0,mpierr)
      endif
    endif