QAR-1619: reconcile redundant SLPlugin.exe copy_if_different with viewer_manifest.py
QAR-1619: reconcile redundant SLPlugin.exe copy_if_different with viewer_manifest.py

gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm