Force `--fatal=warnings|errors` to honor `LOG_FILTER`#2856

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ericrdunham wants to merge 2 commits intogetpelican:mainfrom ericrdunham:images-allow-empty-alt-text

+62-21

Commits on Mar 1, 2021

Add setting to allow for empty alt text in images
ericrdunham
committed

Commits on Mar 3, 2021

Fix --fatal to honor LOG_FILTER
ericrdunham
committed