Merge pull request #1769 from daniel-riehm/dev/release-v1.8.0

Release v1.8.0

Update version number and release notes for 1.7.0 release

Merge pull request #1576 from chetnieter/dev/prep-for-1.6.1

Updated version number and release notes for 1.6.1 release

Merge pull request #1375 from johnwparent/dev/kwiver-python-doc

Basic Python documentation and examples

Merge pull request #1215 from johnwparent/release

Update versioning in relevant files for upcoming patch release v1.5.1

Merge pull request #1004 from mleotta/dev/ffmpeg-fast-frame-count

FFMPEG fast frame count

Merge pull request #1004 from mleotta/dev/ffmpeg-fast-frame-count

FFMPEG fast frame count

clean up and spellcheck 1.5 release notes

updates for v1.5.0 release

https://pypi.org/project/kwiver/1.4.3/