(split) COMP: Use FLTK zip file stored on Midas3.

Note from Bill Lorensen:

On my Ubuntu build, I tried the recently updated ITKApps.

I got this error:
svn: OPTIONS of 'http://seriss.com/public/fltk/fltk/branches/branch-1.3': authorization failed: Could not authenticate to server: rejected Basic challenge (http://seriss.com)

Then I tried a manual svn co of FLTK and got:
svn co http://seriss.com/public/fltk/fltk/branches/branch-1.3/ --username --password fltk-1.3
Password for 'default' GNOME keyring:
svn: OPTIONS of 'http://seriss.com/public/fltk/fltk/branches/branch-1.3': authorization failed: Could not authenticate to server: rejected Basic challenge (http://seriss.com)

So I looked at my
~/.subversion/config file and saw this line commented:
  password-stores = gnome-keyring,kwallet

when I changed it to:
 password-stores = kwallet

the superbuild downloaded fltk just fine.

To prevent SVN authentification issues, we use a zip file of the patched version FLTK stored on the ITK midas3.kitware.com community.

Change-Id: I33fbb855b096d3246da4f28afb4dbc28eb7606d3
(split) ENH: Add TCL Wrapped examples

The TCL wrapped examples were never converted to ITKv4. This patch
adds them to the Superbuild. ALso, several changes to CMakeLists.txt
files were required to bring the TCL examples up-to-date.

Change-Id: I2bdfc6f293259eebf0b94db4a25e67f00e2ddd96
(split) ENH: Bump ITK superbuild version to 4.4.0.

Change-Id: I2b6c3ed8c4b68607f4cef5e3f8a0b0a5642e963e
Merge branch 'Superbuild-latest' of /home/matt/progs/ITKApps