Add relaunch.sh for automated (e.g. github webhook) rebuild and launch.
Add relaunch.sh for automated (e.g. github webhook) rebuild and launch.

dcrdata/dcrdata,RogueElement/dcrdata,RogueElement/dcrdata,dcrdata/dcrdata,RogueElement/dcrdata,dcrdata/dcrdata,dcrdata/dcrdata,dcrdata/dcrdata,RogueElement/dcrdata