faster optimized resampling in PDL::Transform
some further streamlining of the map code; add several tests.
add some more documentation of the blur parameter.
update Gaussian with 'g'/'G' split like Hanning windows.
add apply tests; add dimensionality checks to transform.pd
In PDL::Modules, changed PDL::GSL links to PDL::GSLSF where necessary.

Problem reported on the perldl email list.
win32/INSTALL - documentation amendment

PDL::FFTW is no longer part of core PDL.
Graphics/PLplot/plplot.pd - porting requirement for PDL-2.007

Have mapform_callback() function accommodate the PDL_Indx
type when needed.
Bring latest master updates down; preparing to push improvements to Transform
Merge branch 'master' of ssh://git.code.sf.net/p/pdl/code
fix ufunc max/min issues with Nan order and also with empty sets.
updates to ufunc to further improve empty and nan handling
fix abuse of gzip in FlexRaw (some versions of gzip don't find .Z files automagically);
fail more informatively if gzip isn't present on the system.
transform dims are too loosey-goosey for strict checking.
PDL::IO::Storable is now robust to type, version, endianness

Previously PDL::IO::Storable produces extremely unportable data. Files could
become unreadable on a different architecture or PDL version. We are now more
robust. Old-style data files are as supported as they were previously (i.e. not
robustly). However newly-saved data should be readable on any recent PDL, on any
machine from now on
PDL::IO::Storable: minor pod update, add dima's copyright
added tests for storable data reading
Don't include <sys/time.h> as it breaks SPP 64bit

I'm not sure why it is even being used.  Commenting it out
caused no problems for cygwin.  Need to see how other platforms
test out...
Skip croaking tests for upstream Storable bug

It appears that Storable doesn't handle a longlong integer
although the perl does (since ivtype is 'long long').  Need to
generate a problem report for upstream.
Revert "fix abuse of gzip in FlexRaw (some versions of gzip don't find .Z files automagically);"

This reverts commit 08a349c5af238f27c850c089bc64f6171a89ce27.
which gives a partial cleanup to FlexRaw support for compressed
files but breaks the build for win32 SPP.

TODO: implement with a non-unix-only code and update t/flexraw_fortran.t
(at least) to gracefully handle the new code.  E.g., things should
still pass whether or not a platform has the needed compress/gzip.
Correct WITH_PLPLOT description in perldl.conf

Closes sf.net feature request #345 documentation
of WITH_PLPLOT in perldl.conf incorrect.