Moved eras files back to multiplayer/ since its movement caused errors in replays pre-move

data/_main.cfg

@@ -33,7 +33,7 @@
 #endif
 
 # Using different default eras in SP and MP forces a config reload which we don't want.
-{eras.cfg}
+{multiplayer/eras.cfg}
 
 {campaigns/}
 

data/multiplayer/eras.cfg

@@ -16,7 +16,7 @@
     [event]
         name=prestart
         [lua]
-            code = << wesnoth.require("eras.lua").quick_4mp_leaders(...) >>
+            code = << wesnoth.require("multiplayer/eras.lua").quick_4mp_leaders(...) >>
             [args]
                 {TRAIT_QUICK}
             [/args]
@@ -28,7 +28,7 @@
     [event]
         name=time over
         [lua]
-            code = << wesnoth.require("eras.lua").turns_over_advantage() >>
+            code = << wesnoth.require("multiplayer/eras.lua").turns_over_advantage() >>
         [/lua]
     [/event]
 #enddef