Envvars in files from /config and /mods now replaced as expected (#701)

Envvars in files from `/config` and `/mods` now replaced as expected (#701)

start-finalSetupMounts

@@ -0,0 +1,38 @@
+#!/bin/bash
+
+. ${SCRIPTS:-/}start-utils
+
+: ${PLUGINS_SYNC_UPDATE:=true}
+
+isDebugging && set -x
+
+if [ -d /plugins ]; then
+  case ${TYPE} in
+    SPIGOT|BUKKIT|PAPER|MAGMA)
+      mkdir -p /data/plugins
+      log "Copying plugins over..."
+      if isTrue ${PLUGINS_SYNC_UPDATE}; then
+        updateArg="--update"
+      fi
+      # Copy plugins over using rsync to allow deeply nested updates of plugins
+      rsync -a --out-format="update:%f:Last Modified %M" --prune-empty-dirs $updateArg /plugins /data
+      ;;
+  esac
+fi
+
+# If any modules have been provided, copy them over
+if [ -d /mods ]; then
+  log "Copying any mods over..."
+  mkdir -p /data/mods
+  rsync -a --out-format="update:%f:Last Modified %M" "${rsyncArgs[@]}" --prune-empty-dirs --update /mods /data
+fi
+
+: ${COPY_CONFIG_DEST:="/data/config"}
+
+if [ -d /config ]; then
+  log "Copying any configs from /config to $COPY_CONFIG_DEST"
+  mkdir -p $COPY_CONFIG_DEST
+  rsync -a --out-format="update:%f:Last Modified %M" "${rsyncArgs[@]}" --prune-empty-dirs --update /config/ $COPY_CONFIG_DEST
+fi
+
+exec ${SCRIPTS:-/}start-finalSetupServerProperties $@