Dockerfile: Update default CMD to use a Bash login shell.
Dockerfile: Update default CMD to use a Bash login shell.

nmabhi/Webface,francisleunggie/openface,francisleunggie/openface,nmabhi/Webface,francisleunggie/openface,nmabhi/Webface,nmabhi/Webface,cmusatyalab/openface,xinfang/face-recognize,nhzandi/openface,Alexx-G/openface,Alexx-G/openface,Alexx-G/openface,cmusatyalab/openface,nhzandi/openface,xinfang/face-recognize,cmusatyalab/openface,xinfang/face-recognize,nhzandi/openface,Alexx-G/openface