Make local_server.sh clean up all the bg processes if any of them fails
Make local_server.sh clean up all the bg processes if any of them fails

This is particularly useful if the flask server crashes due to a syntax error.

UWFlow/rmc,shakilkanji/rmc,sachdevs/rmc,sachdevs/rmc,rageandqq/rmc,MichalKononenko/rmc,shakilkanji/rmc,shakilkanji/rmc,JGulbronson/rmc,MichalKononenko/rmc,duaayousif/rmc,sachdevs/rmc,ccqi/rmc,shakilkanji/rmc,sachdevs/rmc,rageandqq/rmc,UWFlow/rmc,MichalKononenko/rmc,rageandqq/rmc,MichalKononenko/rmc,duaayousif/rmc,rageandqq/rmc,UWFlow/rmc,duaayousif/rmc,UWFlow/rmc,sachdevs/rmc,JGulbronson/rmc,UWFlow/rmc,duaayousif/rmc,rageandqq/rmc,shakilkanji/rmc,JGulbronson/rmc,JGulbronson/rmc,JGulbronson/rmc,ccqi/rmc,ccqi/rmc,duaayousif/rmc,MichalKononenko/rmc,ccqi/rmc,ccqi/rmc