(backport) yield_sequences_in_list: use unique key for single files w…

…ith no frame to prevent name collision with same basename using frames (refs #135)

yield_sequences_in_list: use unique key for single files with no fram…

…e to prevent name collision with same basename using frames (refs #135)

Update type annotations to pass strict mypy check (refs #118)

Make FileSequence perform more accurate equality test using FrameSet …

…(refs #131)

Merge branch 'v2'

Fix for python2 rounding

Update __version__.py

bump version 1.15.1

Add option to setPadStyle to convert zfill (refs #116)

bump v1.14.0

Update graphics with background gradient