Fixed Lua 5.2+ errors with backwards compatibility

luascripts/admin/admin.lua

@@ -121,7 +121,7 @@ function admin.onconnect(clientId, firstTime, isBot)
 
     if firstTime then
         if stats.get(clientId, "playerGUID") == "NO_GUID" or stats.get(clientId, "playerGUID") == "unknown" then
-            return "\n\nIt appears you do not have a ^7GUID^9/^7etkey^9. In order to play on this server, enable ^7PunkBuster ^9(use ^7\pb_cl_enable^9) ^9and/or create an ^7etkey^9.\n\nMore info: ^7www.etkey.org"
+            return "\n\nIt appears you do not have a ^7GUID^9/^7etkey^9. In order to play on this server, enable ^7PunkBuster ^9(use ^7\\pb_cl_enable^9) ^9and/or create an ^7etkey^9.\n\nMore info: ^7www.etkey.org"
         end
 
         if db.isconnected() then

luascripts/util/tables.lua

@@ -17,6 +17,14 @@
 
 local tables = {}
 
+function tables.unpack(table)
+    if table.unpack ~= nil then
+        return table.unpack(table)
+    elseif unpack ~= nil then
+        return unpack(table)
+    end
+end
+
 function tables.contains(table, needle)
     for key, value in pairs(table) do
         if value == needle then
@@ -37,4 +45,4 @@ function tables.find(table, needle)
     return nil
 end
 
-return tables
+return tables

luascripts/util/timers.lua

@@ -18,6 +18,7 @@
 local constants = require "luascripts.wolfadmin.util.constants"
 local util = require "luascripts.wolfadmin.util.util"
 local events = require "luascripts.wolfadmin.util.events"
+local tables = require "luascripts.wolfadmin.util.tables"
 
 local timers = {}
 
@@ -55,7 +56,7 @@ end
 function timers.ongameframe(levelTime)
     for id, timer in pairs(data) do
         if (et.trap_Milliseconds() - timer["start"]) > timer["interval"] then
-            timer["function"](unpack(timer["args"]))
+            timer["function"](tables.unpack(timer["args"]))
             timer["iteration"] = timer["iteration"] + 1
 
             if timer["repeat"] == 0 or timer["iteration"] < timer["repeat"] then
@@ -68,4 +69,4 @@ function timers.ongameframe(levelTime)
 end
 events.handle("onGameFrame", timers.ongameframe)
 
-return timers
+return timers

luascripts/util/util.lua

@@ -45,7 +45,7 @@ function util.escape(str)
 end
 
 function util.removeColors(str)
-    return string.gsub(str, "(\^[%a%d%p])", "")
+    return string.gsub(str, "(^[%a%d%p])", "")
 end
 
 function util.getTeamName(teamId)