iwidgets-4.1-bp151.3.1

- Update to version 4.1 from the kbskit SF project for
  compatibility with itk 4.0.0.
- Manpages are not included anymore, but current documentation can
  be found on http://incrtcl.sourceforge.net/iwidgets/ .

- add autoconf as buildrequire to avoid implicit dependency

- Change Requires to reflect the split of itk from itcl.

- fix docu permissions

- converted neededforbuild to BuildRequires

- Moved the sctipt library to /usr/share/tcl .

- added option # norootforbuild in specfile

- Removed unneeded stuff from neededforbuild.

- This package has been split off from itcl, because the sources
  are separate projects now.
- New version 4.0.1.
- As the dependencies for Tcl extensions can't currently be
  tracked automatically, packages that depend on itcl might
  need to be changed to depend on iwidgets as well, if they
  actually use it.