[Users] IOJpeg change

[Steven R. Brandt]

I'd like to propose the following change to IOJpeg. It gets rid of 
annoying error messages when one of the dimensions is one.

   if (CCTK_EQUALS(gridpoints, "hyperslab"))
   {

     /* now do the actual I/O looping over all directions */
     for (dir = 0; dir < maxdir; dir++)
     {
       /* get the directions to span the hyperslab */
       if (dir == 0)
       {
         dir_i = 0; dir_j = 1;   /* xy */
         if(GH->cctk_gsh[0]==1 || GH->cctk_gsh[1]==1)
             continue;
       }
       else if (dir == 1)
       {
         dir_i = 0; dir_j = 2;   /* xz */
         if(GH->cctk_gsh[0]==1 || GH->cctk_gsh[2]==1)
             continue;
       }
       else
       {
         dir_i = 1; dir_j = 2;   /* yz */
         if(GH->cctk_gsh[1]==1 || GH->cctk_gsh[2]==1)
             continue;
       }

Cheers,
Steve