Apply patches from YAC repository

Closes #32 (closed).

added 28 commits

• ad6eae00...d8ba5c01 - 25 commits from branch master
• ea794f72 - Remove trailing white spaces in mtime_timedelta.c
• e6e832c2 - Replace tabs with spaces in mtime_timedelta.c
• 4e3e8426 - Fix compiler warnings

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added 13 commits

• 4e3e8426...82c7940e - 8 commits from branch master
• f913b91b - Reformat mtime_iso8601.rl
• c87d91b7 - Update .git-blame-ignore-revs
• 4a843744 - Clean up mtime_iso8601.rl
• 30d15540 - Re-generate mtime_iso8601.c
• 6e0ed52e - Fix compiler warnings

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added 1 commit

• 7ff6e8f7 - Fix compiler warnings

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added 1 commit

• d3260020 - Update AUTHORS

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enabled an automatic merge when the pipeline for d3260020 succeeds

merged