Fix Rust 2021 warnings

Test jpeg overlays over pngs

Fix integration tests for imageflow_server to actually check status c…

…ode; add response bytes when failure occurs

fix nuget name in action and upload structure (imazen#574)

* fix duplicate upload on S3

* fix nuget name

* fix osx name

* fix name for macos

* fix github upload

* fixed release dir

Move CommandString nodes to their own file

Optimize png size when applying opaque matte color

Bump

Add job_result { decodes } and build_result {decodes} and fix io_id c…

…hecking to be safer

Add watermark_red_dot JSON node and querystring command

Spellings: exclude valgrind_suppressions.txt