Set PKG_VERSION in gluon.mk

This removes PKG_VERSION and PKG_RELEASE from most Makefiles, as the
value was never useful for Gluon packages; instead, PKG_VERSION is set
to 1 in gluon.mk.

It also removes two other weird definitions:

- gluon-iptables-clamp-mss-to-pmtu replicating the old PKG_VERSION logic
  from gluon-core, but without the fixed PKG_BUILD_DIR to prevent
  unnessary rebuilds
- gluon-hoodselector set GLUON_VERSION=3

package/gluon-setup-mode/Makefile

@@ -4,7 +4,6 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=gluon-setup-mode
-PKG_VERSION:=1
 
 include ../gluon.mk
 

package/gluon-site/Makefile

 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=gluon-site
-PKG_VERSION:=1
 
 GLUON_SITEDIR = $(call qstrip,$(CONFIG_GLUON_SITEDIR))
 

package/gluon-state-check/Makefile

 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=gluon-state-check
-PKG_VERSION:=1
 
 include ../gluon.mk
 

package/gluon-status-page-mesh-batman-adv/Makefile

 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=gluon-status-page-mesh-batman-adv
-PKG_VERSION:=1
 
 include ../gluon.mk
 

package/gluon-status-page/Makefile

 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=gluon-status-page
-PKG_VERSION:=3
 
 include ../gluon.mk
 

package/gluon-wan-dnsmasq/Makefile

 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=gluon-wan-dnsmasq
-PKG_VERSION:=1
 
 include ../gluon.mk
 

package/gluon-web-admin/Makefile

@@ -4,8 +4,6 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=gluon-web-admin
-PKG_VERSION:=1
-PKG_RELEASE:=1
 
 include ../gluon.mk
 

package/gluon-web-autoupdater/Makefile

@@ -4,8 +4,6 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=gluon-web-autoupdater
-PKG_VERSION:=1
-PKG_RELEASE:=1
 
 include ../gluon.mk
 

package/gluon-web-logging/Makefile

 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=gluon-web-logging
-PKG_VERSION:=1
-PKG_RELEASE:=1
 
 include ../gluon.mk
 

package/gluon-web-mesh-vpn-fastd/Makefile

 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=gluon-web-mesh-vpn-fastd
-PKG_VERSION:=1
-PKG_RELEASE:=1
 
 include ../gluon.mk
 

package/gluon-web-model/Makefile

 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=gluon-web-model
-PKG_VERSION:=1
 
 include ../gluon.mk
 

package/gluon-web-network/Makefile

@@ -4,8 +4,6 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=gluon-web-network
-PKG_VERSION:=1
-PKG_RELEASE:=1
 
 include ../gluon.mk
 

package/gluon-web-node-role/Makefile

 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=gluon-web-node-role
-PKG_VERSION:=1
 
 include ../gluon.mk
 

package/gluon-web-osm/Makefile

 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=gluon-web-osm
-PKG_VERSION:=1
 
 include ../gluon.mk
 

package/gluon-web-private-wifi/Makefile

 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=gluon-web-private-wifi
-PKG_VERSION:=1
-PKG_RELEASE:=1
 
 include ../gluon.mk
 

package/gluon-web-wifi-config/Makefile

 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=gluon-web-wifi-config
-PKG_VERSION:=1
-PKG_RELEASE:=1
 
 include ../gluon.mk
 

package/gluon-web/Makefile

 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=gluon-web
-PKG_VERSION:=1
 
 PKG_INSTALL:=1
 

package/gluon-wireless-encryption/Makefile

 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=gluon-wireless-encryption
-PKG_RELEASE:=1
 
 include ../gluon.mk
 

package/gluon.mk

 GLUON_MK := $(abspath $(lastword $(MAKEFILE_LIST)))
 PKG_FILE_DEPENDS += $(GLUON_MK)
 
+PKG_VERSION ?= 1
+
 PKG_BUILD_DEPENDS += luasrcdiet/host
 
 ifneq ($(wildcard ./luasrc/.),)