Prepare v0.3.4 release.

Update PyPI package for v0.3.3 release.

Prepare v0.3.2-beta release.

Prepare v0.3.1-beta release.

Prepare v0.3-beta release.

Bugfix for previous commit (missing character index for version strin…

…g check).

Added missing string index when determining OpenCV version.

Added statistics mode (-s) for frame-by-frame analysis and preperatio…

…n for content-aware scene detection.

Added timecode formatting functionality in HH:MM:SS.nnnnn format.

Added scene list generation and export to .csv file.