Linux 64-bit build support. Moved viewer_manifest.py linux packaging around and use if self.is_packaging_viewer() in order to not break standalone builds.
Linux 64-bit build support.
Moved viewer_manifest.py linux packaging around and use if self.is_packaging_viewer() in order to not break standalone
builds.

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