Recovered from loss of uniq/uniqind/uniqvec

Fixed a reversion in the code for uniqvec.  Now uniq and uniqind
both support BAD and NaN.  uniqvec functions but it still does
not return the mixed BAD and good value vectors nor all of the
NaN containing vectors.
New NaN/BAD aware uniqvec completed

Now uniq/uniqind/uniqvec all handle NaNs and BAD values
consistenly and consistent with Matlab/Octave conventions.
The current implementation does not have a well defined
standard for sorting vectors with NaN or BAD values in them.
The result looks like this:

 All good, non-NaN vectors, sorted.
 All non-NaN vectors with BAD values next.
 All NaN containing vectors last.
Remove development uniq/uniqind/uniqvec from git
Cleanup Known_Problems and Devel::REPL plugins

We don't need our own copy of the Devel::REPL latest since the
official Devel-REPL-1.003011.tar.gz is out now.  Updated
Known_Problems from some new status in sf.net bugs list.
Update MANIFEST and MANIFEST.SKIP
Assign a value to $PERLDL::TERM from $_REPL->term
Update POD for uniq/uniqind/uniqvec routines
Update Makefile.PL, browse.c for PDL::IO::Browser

Had to change stdscr variable name with pdlscr since it
is apparently being used in ncurses now.  Added notes on
improvements needed to curses include/library search.
Cygwin 1.7.5 now has the curses.h in /usr/include/ncurses
by default with no header file or link at the top level.

Also did some minor cleanup of MANIFEST.SKIP
t/plplot.t - win32 portability

Provide Windows-specific renditions
of tests 2 and 35
Update Perldl2/TODO

Thanks for the feedback, Rob.  I've added the couple of
issues to the TODO list to see that they are addressed
at some point.
Don't load INC and Keywords completion wo deps

Now check for required dependencies for CompletionDriver::INC
and CompletionDriver::Keywords (File::Next and B::Keywords,
respectively) before loading the plugins.  Still needs a
refactor to simplify and make available for all plugins as
a check.  Also updated Perldl2/TODO with this information
as well as the investigation results into the use of clear
to clear the screen for win32.
do_print now toggles setting in PrintControl

Renamed the print settings attribute in the PrintControl
plugin to print_by_default and reimplemented do_print()
to toggle that value if no new value were passed in the
method call.  TODO: still would like a function for this
so the $_REPL stuff does not need to be exposed.
Add cls support to Demos/Screen.pm for win32

Still need to resolve the problem with hanging at the
<> input at the end of the demo.  Maybe this operation
can be replaced by a ReadKey one.
Add VERSION to PDL::Perldl2::Profile::Perldl2

Note, this is still the Perldl2 Shell with its next generation
technologies.  Now we can track functionality against VERSION
changes for announcements and documentation.
Add .perldlrc file processing to Perldl2

This required a subclass of Devel::REPL::Script to override
the load_rcfile method call.  Minor change to the Makefile.PL
for the new file.
Add processing of local.perldlrc or local.pdlrc
Added .pdlrc support to Perldl2 shell

List discussion supported using pdl as the name of the
interactive shell and interpreter for PDL.  Looking forward,
the new Perldl2 shell also looks for .pdlrc and local.pdlrc
in addition to the perldl flavor names.
Update readme-type files re Perldl2 progress

Now that the .perldlrc and local.perldlrc files are processed,
this is some clean up of the docs and readmes in preparation
for another CPAN developers release.
+Checks to prevent access to undef $HOME warnings

Make sure to check that $HOME is defined before testing
it in conditionals to prevent warnings.
Implement perldl command shortcuts, aliases...

Implement shortcuts to quit the shell, ?/?? as aliases for the
help/apropos commands, autoquoting the arguments to the various
interactive doc-type commands, and shell escapes.