Start the 0.2.4-dev CHANGELOG
Start the 0.2.4-dev CHANGELOG

mcpv/PyAV,markreidvfx/PyAV,mikeboers/PyAV,xxr3376/PyAV,mikeboers/PyAV,mcpv/PyAV,markreidvfx/PyAV,pupil-labs/PyAV,xxr3376/PyAV,mcpv/PyAV,PyAV-Org/PyAV,markreidvfx/PyAV,pupil-labs/PyAV,PyAV-Org/PyAV,xxr3376/PyAV,pupil-labs/PyAV,pupil-labs/PyAV