v2.8.4

Changes:

• 197a4f0 Speed up unittests
• f24d10b fix message break plugin (#739)
• 7f6e28e Close old project only when new project acknowledged
• 59de801 build sequentially in pyinstaller_helper.py (#736)
• c0f2e28 Run .exe in CI for testing (#735)
• 65e3c13 improve timeouts in tests (#734)
• bb4a275 UI: Updated capitalization of GNU Radio
• af691f4 make include path in rebuild configurable (#733)
• 28e3452 make combobox for device selection editable

This list of changes was auto generated.