Use install rather than cp to prevent "Text file busy" if burrow is running
Use install rather than cp to prevent "Text file busy" if burrow is running

Signed-off-by: Sean Young <ed09b1b8de87fefa3fbdeb9d60effff215445504@monax.io>

silasdavis/burrow,eris-ltd/eris-db,silasdavis/burrow,silasdavis/burrow,eris-ltd/eris-db