Do not list currencies with 0 balance

Includes/Core.ps1

@@ -234,7 +234,7 @@ Function Start-Cycle {
 
         # Load currency exchange rates from min-api.cryptocompare.com
         $Variables.BalancesCurrencies = @($Variables.Balances.Keys | ForEach-Object { $Variables.Balances.$_.Currency } | Sort-Object -Unique)
-        $Variables.AllCurrencies = @(@($Config.Currency) + @($Config.Wallets | Get-Member -MemberType NoteProperty | Select-Object -ExpandProperty Name ) + @($Config.ExtraCurrencies) + @($Variables.BalancesCurrencies) | Select-Object -Unique)
+        $Variables.AllCurrencies = @((@($Config.Currency) + @($Config.ExtraCurrencies) + @($Variables.BalancesCurrencies)) | Select-Object -Unique)
         If (-not $Variables.Rates.BTC.($Config.Currency) -or $Config.BalancesTrackerPollInterval -lt 1) { 
             Get-Rate
         }