Merge remote-tracking branch 'upstream/master'

If a player teleports far away, their hp_bar can become deactivated and disappear. The mod installs the gauge only when a player joins, so it will be forever missing. `static_save = false` prevents the item from deactivating https://github.com/minetest/minetest/blob/master/src/serverenvironment.cpp#L2028 .
Also, it doesn't make sense to save `gauges:hp_bar` to map meta since it's not a standalone item.

CHANGELOG.md

@@ -7,6 +7,15 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased]
 
+### Changed
+
+- [Health and breath bars now adapt to custom maximum values instead of being hardcoded to 20 and 11 respectively.](https://github.com/minetest-mods/gauges/pull/9)
+
+### Fixed
+
+- [The health bar entity is no longer lost when a player teleports.](https://github.com/minetest-mods/gauges/pull/10)
+  - A side effect is that health bar entities are no longer saved in map metadata.
+
 ## [1.0.4] - 2020-09-27
 
 ### Added

init.lua

@@ -45,6 +45,7 @@ minetest.register_entity("gauges:hp_bar", {
 	textures = {"blank.png"},
 	collisionbox = {0},
 	physical = false,
+	static_save = false,
 
 	on_step = function(self)
 		local player = self.wielder