Fix Login problem and use removeEvent (#816)

When trying to logout in battle the player would not logout and tryLogin
would be called, so the next time you tryed to login it will still be
trying to login

modules/client_entergame/characterlist.lua

@@ -8,6 +8,7 @@ local errorBox
 local waitingWindow
 local updateWaitEvent
 local resendWaitEvent
+local loginEvent
 
 -- private functions
 local function tryLogin(charInfo, tries)
@@ -21,7 +22,7 @@ local function tryLogin(charInfo, tries)
     if tries == 1 then
       g_game.safeLogout()
     end
-    scheduleEvent(function() tryLogin(charInfo, tries+1) end, 100)
+    loginEvent = scheduleEvent(function() tryLogin(charInfo, tries+1) end, 100)
     return
   end
 
@@ -180,15 +181,20 @@ function CharacterList.terminate()
   end
 
   if updateWaitEvent then
-    updateWaitEvent:cancel()
+    removeEvent(updateWaitEvent)
     updateWaitEvent = nil
   end
 
   if resendWaitEvent then
-    resendWaitEvent:cancel()
+    removeEvent(resendWaitEvent)
     resendWaitEvent = nil
   end
 
+  if loginEvent then
+    removeEvent(loginEvent)
+    loginEvent = nil
+  end
+
   CharacterList = nil
 end
 
@@ -310,6 +316,10 @@ function CharacterList.doLogin()
                        worldName = selected.worldName,
                        characterName = selected.characterName }
     charactersWindow:hide()
+    if loginEvent then
+      removeEvent(loginEvent)
+      loginEvent = nil
+    end
     tryLogin(charInfo)
   else
     displayErrorBox(tr('Error'), tr('You must select a character to login!'))
@@ -330,12 +340,12 @@ function CharacterList.cancelWait()
   end
 
   if updateWaitEvent then
-      updateWaitEvent:cancel()
+    removeEvent(updateWaitEvent)
     updateWaitEvent = nil
   end
 
   if resendWaitEvent then
-    resendWaitEvent:cancel()
+    removeEvent(resendWaitEvent)
     resendWaitEvent = nil
   end