Merge remote-tracking branch 'origin/wip5.7.0' into farmesh5.7.0

CHANGELOG.md

@@ -9,6 +9,11 @@ Core: fast reliable network protocol, fast multi-threaded server, utf8 chat, bui
 
 Changelog
 ======
+### 5.7.0.0 (?)
+  * Tree growth
+  * Weather tuned
+
+
 ### 5.6.1.0 (?)
   * auth_kv removed, use instead in world.mt:
     auth_backend = leveldbfm

builtin/mainmenu/tab_online.lua

@@ -312,7 +312,7 @@ local function main_button_handler(tabview, fields, name, tabdata)
 				if gamedata.address and gamedata.port then
 					core.settings:set("address", gamedata.address)
 					core.settings:set("remote_port", gamedata.port)
-					core.settings:set("remote_proto", gamedata.proto)
+					core.settings:set("remote_proto", gamedata.proto or "mt")
 					core.start()
 				end
 				return true