Inconsistent path in Dockerfile.dev

[mabdh]

Describe the bug
We use Dockerfile.dev to build a tag dev. Our current Dockerfile.dev copied shield to /usr/local/bin/shield but the Dockerfile is copying shield to usr/bin/shield.

Expected behavior
Same path between Dockerfile and Dockerfile.dev. We need to update Dockerfile.dev so shield is copied to /usr/bin/shield.