HaroldMills/Vesper: v0.4.5

This release:

• Adds two new detectors, MPG Ranch Tseep Detector 0.0 and MPG Ranch Thrush Detector 0.0. These detectors are preliminary versions of neural-network-based detectors trained on MPG Ranch data. In version 0.0, the neural networks are identical to those of the MPG Ranch NFC Coarse Classifier 3.0. In future versions the neural networks will be trained on data that better reflect the statistics of the audio segments that a detector encounters in a recording, as opposed to the segments that a coarse classifier encounters in clips.

• Improves the responsiveness of rapid navigation through clip album pages.

• Fixes a clip album bug that sometimes resulted in empty clip views after a settings change.