- changed way pass $RPM_OPT_FLAGS (as a configure eviroment variable).

- changed way pass $RPM_OPT_FLAGS (as a configure eviroment variable).
By Marcin 'Qrczak' Kowalczyk <qrczak@knm.org.pl>:
- changed Version / Release numbering scheme,
- use %{name} and %{version} macros,
- `mkdir -p' replaced with more standard `install -d',
- added full %attr description in %files,
- removed unnecessary empty /usr/share/gnuplot directory,
- added pl translation,
- fixed using $RPM_OPT_FLAGS.

Changed files:
    gnuplot.spec -> 1.1