Documentation updates for new preprocessor support.

docs/ReleaseNotes.txt

@@ -1,5 +1,16 @@
 === v1.0.3 === (not yet released)
 
+ispc now has a bulit-in pre-processor (from LLVM's clang compiler).
+(Thanks to Pete Couperus!)  It is therefore no longer necessary to use
+cl.exe for preprocessing before on Windows; the MSVC proejct files for the
+examples have been updated accordingly.
+
+There is another variant of the shuffle() function int the standard
+library: "<type> shuffle(<type> v0, <type> v1, int permute)", where the
+permutation vector indexes over the concatenation of the two vectors
+(e.g. the value 0 corresponds to the first element of v0, the value
+2*programCount-1 corresponds to the last element of v1, etc.)
+
 There are now both 'signed' and 'unsigned' variants of the standard library
 functions like packed_load_active() that that references to arrays of
 signed int32s and unsigned int32s respectively.  (The
@@ -12,12 +23,6 @@ initialize their members; they now must be initialized with initializer
 lists in braces (or initialized after of the initializer with a loop over
 array elements, etc.)
 
-Added another shuffle() function to the standard library: 
-"<type> shuffle(<type> v0, <type> v1, int permute)", where the permutation
-vector indexes over the concatenation of the two vectors (e.g. the value
-0 corresponds to the first element of v0, the value 2*programCount-1
-corresponds to the last element of v1, etc.)
-
 === v1.0.2 === (1 July 2011)
 
 Floating-point hexidecimal constants are now parsed correctly on Windows