Security update

Yesterday hive-engine released new smart contract features.
Among other things, an important security feature is now included to ensure that you do not pay more for an NFT than the price you have seen in the market. Previously, the price could change drastically in the period between the display and the purchase.

Now, both the expected price and the expected price symbol can be passed as optional parameters in the purchase transaction and the purchase will only be executed if both the price and the price symbol match.

At my @hive-tools I added the two parameters, and put the updated version online.

hive-tools: http://cryptoriddler.bplaced.net/hivetools/

Hive-tools is a collection of tools for hive and was created by @cryptoriddler and @kyrianda.

You can login to the site with keychain, but most of the functions can currently be used without login.