fixme updates

lib/cartesian/Cartesian_base.h

@@ -148,8 +148,6 @@ public:
   inline int PermuteType(int dimension){
     int permute_type=0;
     //
-    // FIXME:
-    //
     // Best way to encode this would be to present a mask 
     // for which simd dimensions are rotated, and the rotation
     // size. If there is only one simd dimension rotated, this is just 

lib/stencil/Stencil.h

@@ -990,7 +990,7 @@ public:
     //    int words = sizeof(cobj)/sizeof(vector_type);
     
     assert(cbmask==0x3); // Fixme think there is a latent bug if not true
-    
+                         // This assert will trap it if ever hit. Not hit normally so far
     int reduced_buffer_size = buffer_size;
     if (cbmask != 0x3) reduced_buffer_size=buffer_size>>1;