Eighth alpha for initial release

• Fix some issues causing crashes upon exit (PR #23)
• improve UI behaviour for different screen resolutions

Still crashes upon exit, root cause is somewhere in the plot routines.

Seventh alpha for initial release

• added lock zoom functionality for plot toolbar
• improved method names for plot and input widgets
• fixed several small bugs

... still crashing upon exit

Sixth alpha for initial release

• Implemented logging system instead of if DEBUG: print(...
• fixed some py2/3 bugs
• fixed some smaller bugs

Crash on exit bug still exists

Fifth alpha for initial release

• fixed annoying flickering caused by multiple update of input specification mask
• fixed group_delay numerical inaccuracies (copied new implementation from scipy 0.16)
• cleaned up signal & slot mess
• lots of small improvements and bug fixes

... but crash on exit bug still exists :-(

Forth alpha for initial release

Lots of small bug fixes:

• frequency specification entry now works again
• saving and loading filters in npz and pkl formats works under py2 and py3
• several inconsistencies between py2 and py3

Third alpha for initial release

Fixed bugs caused by reorganizing code to a central filter factory.

Exit bug still exists.

Second alpha for initial release

Moved code for dynamically generating filter classes into one location - filterbroker.py

This version still has the exit bug

First alpha for initial release

Designing and analyzing various kinds of IIR and FIR filters is possible with this version, although some minor issues should be fixed for the initial release v0.1