consistency update

- OSspecific: chmod() -> chMod(), even although it's not used anywhere

- ListOps get subset() and inplaceSubset() templated on BoolListType

- added UList<bool>::operator[](..) const specialization.
  Returns false (actually pTraits<bool>::zero) for out-of-range elements.
  This lets us use List<bool> with lazy evaluation and no noticeable
  change in performance.

- use rcIndex() and fcIndex() wherever possible.
  Could check if branching or modulus is faster for fcIndex().

- UList and FixedList get 'const T* cdata() const' and 'T* data()' members.
  Similar to the STL front() and std::string::data() methods, they return a
  pointer to the first element without needing to write '&myList[0]', recast
  begin() or violate const-ness.

applications/test/PackedList/PackedListTest.C

@@ -77,14 +77,22 @@ int main(int argc, char *argv[])
         const PackedList<3>& constLst = list1;
         Info<< "\ntest operator[] const with out-of-range index\n";
         constLst.print(Info);
-        if (!constLst[20])
+        if (constLst[20])
+        {
+            Info<< "[20] is true (unexpected)\n";
+        }
+        else
         {
             Info<< "[20] is false (expected) list size should be unchanged (const)\n";
         }
         constLst.print(Info);
 
         Info<< "\ntest operator[] non-const with out-of-range index\n";
-        if (!list1[20])
+        if (list1[20])
+        {
+            Info<< "[20] is true (unexpected)\n";
+        }
+        else
         {
             Info<< "[20] is false (expected) but list was resized?? (non-const)\n";
         }
@@ -268,6 +276,23 @@ int main(int argc, char *argv[])
     Info<< "removed final value: " << list3.remove() << endl;
     list3.print(Info);
 
+
+    List<bool> list4(4, true);
+    {
+        const List<bool>& constLst = list4;
+        Info<< "\ntest operator[] const with out-of-range index\n";
+        Info<< constLst << endl;
+        if (constLst[20])
+        {
+            Info<< "[20] is true (unexpected)\n";
+        }
+        else
+        {
+            Info<< "[20] is false (expected) list size should be unchanged (const)\n";
+        }
+        Info<< constLst << endl;
+    }
+
     Info<< "\n\nDone.\n";
 
     return 0;

applications/test/primitivePatch/testPrimitivePatch.C

@@ -69,7 +69,7 @@ void checkFaceEdges
 
         forAll(f, fp)
         {
-            label fp1 = (fp + 1) % f.size();
+            label fp1 = f.fcIndex(fp);
 
             if (edges[myEdges[fp]] != edge(f[fp], f[fp1]))
             {