Apparently this flag is not ubiquitous amongst gcc compilers.

I forgot to add the const to the arguments to some of them.

This happened when setting run lengths.

Many parts of the code allowed implicit conversion from a 64 bit value
to a 32 bit value.  A lot of this was using IceTSizeType as a 32 bit
integer.  Using the compiler warnings, remove the conversions or make
them explicit.

To simplify the indexing of image partitions in binary swap, the algorithm
pretends that the image is the next largest factor of the number of
processes.  This ensures that the image will always be divided evenly
and consistently.

As a consiquence, the partition at the end of the image might get
truncated.  This was handled, but was not handled was the possibility
that the last partition was of size 0 and the next largest is truncated.
This can happen if the final partition sizes contain less pixels than
number of processes.  The problem was most easily demonstrated by running
the OddImageSizes test on 8 processes.  (4 processes would probably work
too, but I did not test that.)

This fix should also handle any situation where the size of the image
has fewer pixels than number of processes (which is also the case in
the OddImageSizes test).

It was always supposed to be there.  I must have forgotten it.

When in icetCompressedComposite or icetCompressedSubComposite, the time
to do the comparison/blending was not actually recorded.  Fixed that.

Necessary for compiling on MSVC.  Also cleaned up some obvious problems
with declaring variables in the middle of a block.

To get around the issues, the pointers are now cast to IceTByte.  It
is not an elegent solution, but it solves problems on MSVC compilers.

This catches arithmetic with void * pointer, which is not supported by
MSVC.

Also deleted the temporary InterfaceChanges.txt file.

I discovered that several strategies could return an image of the wrong
size when the display tile is blank.  The image buffer would be set
to the maximum display size and never resized to the local tile size.

Also untabified reduce.c.

The copyright on all source now has the current preferred legalize.  All
source now also states that the license is New BSD.

The install target was installing several files that should not
have been installed including one that no longer exists.

When giving the error about the OpenGL layer not being initialized,
hint to the user that icetGLInitialize must be called.