Update installation script to safely remove Heartbeat Node before installing
######################################################################
#
# Checks to prevent potential work loss
#
######################################################################
#
# Since our workflow means that we frequently make changes to the
# following projects from here…
#
# * Heartbeat Node (node.js/)
# * Ind.ie Pulse API (node.js/node_modules/indie-pulse-api)
# * Ind.ie Pulse Config (node.js/node_modules/indie-pulse-config)
# * Ind.ie Pulse Process (node.js/node_modules/indie-pulse-process)
#
# …let’s make sure that the Git repository
# doesn’t have any uncommitted or unpushed changes.
#
# (Prevent potential work loss.)
#
######################################################################