Invalid characters for a wallet name, e.g. `bitcoin-qt -wallet=你好` used to result in an error like this

<img width="494" alt="schermafbeelding 2018-07-24 om 17 46 37" src="https://user-images.githubusercontent.com/10217/43150553-7bdf598a-8f6a-11e8-8972-44c311a57e56.png">

But now it just crashes:

<img width="509" alt="schermafbeelding 2018-07-24 om 17 43 26" src="https://user-images.githubusercontent.com/10217/43150605-9cf32192-8f6a-11e8-9333-87d074c8dd35.png">

I didn't do a `git bisect`, but it broke somewhere this year :-)
SetHDSeed(GenerateNewSeed());
        }
        NewKeyPool();
        Lock();
        
        
        database->Rewrite();
    }
    NotifyStatusChanged(this);
    return true;
}
DBErrors CWallet::ReorderTransactions()
{
    LOCK(cs_wallet);
    WalletBatch batch(*database);
    
    
    
    typedef std::pair<CWalletTx*, CAccountingEntry*> TxPair;
    typedef std::multimap<int64_t, TxPair > TxItems;
    TxItems txByTime;
    for (auto& entry : mapWallet)
    {
        CWalletTx* wtx = &entry.second;
        txByTime.insert(std::make_pair(wtx->nTimeReceived, TxPair(wtx, nullptr)));
    }
    std::list<CAccountingEntry> acentries;
    batch.ListAccountCreditDebit("", acentries);
    for (CAccountingEntry& entry : acentries)
    {