The import of non-presale-wallets will cause a stalling/infinite import dialog.
Affected wallets (web3-secret-storage version 1 to 3):

• myethereumwallet.com
• kryptokit Problem importing kryptokit-wallet #631
• Mist wallets (create wallet, move out of keystore and import)

We could also change the menu-label from import Pre-sale Accounts to import Wallet.