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Merge pull request #5051 from esteve/update-class_loader-branch

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Merge pull request #5052 from esteve/update-pluginlib-branch

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Merge pull request #5053 from 130s/bloom-rtmros_hironx-0

rtmros_hironx: 1.0.18-1 in 'hydro/distribution.yaml' [bloom]
shadow_robot: 1.3.2-0 in 'indigo/distribution.yaml' [bloom]
Merge pull request #5054 from shadowmanos/bloom-shadow_robot-1

shadow_robot: 1.3.2-0 in 'indigo/distribution.yaml' [bloom]
rtmros_hironx: 1.0.18-2 in 'groovy/distribution.yaml' [bloom]