the collect_garbage function returns the number of collected items now.
helper.leading_zeros, a function to convert an integer to a string that has
the same number of digits as a given maximum number
Fixes in the RecordTransferFunction example for a new version of wx.
Disable the automatic resampling in the FindHamonicImpulseResponse class.
A Rectangle filter for the FilterGenerator class.
Solved a unicode problem when loading files with Python2 that have been
saved with Python3
Updated the TODO-list
Merge branch 'current' into next
Merge branch 'next' into untested