gr-utils: Adding save and open actions to filter designer.
Manages window/filter types better. Disables filter types if the designing algorithm doesn't support it (no RRC or Gaussian for equiripple filters).
Fixing tab order.
Adding display for the number of taps in the filter.
Adding equiripple band reject filter to filter design app.
Added design for Guassian filters.
Added design for RRC filters.
Added Band Notch filter
Adding a phase and group delay plot to the GUI.
Adding features and usability.
Adding a graphical tool to design and analyze filters.