Bluez-utils has been removed in the Bluez 5 package. Bluez-simple-agent is renamed, to simple-agent (I think) but bluetoothctl has been added for managing devices. It's a sweet little CLI used for various tasks like pairing and trusting. Google will find you examples, or here's a quote from a much longer post on this forum:
Let's go ahead and pair our Bluetooth-enabled mobile device. I've tested this set-up with a couple of Bluetooth dongles, and my Nexus 4 phone running Android 4.4. We'll use the CLI interface bluetoothctl. Start it with
Enter the following commands to bring up the adapter, make it discoverable (for three minutes), start a pairing agent, and make that agent the default
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Now, on your mobile device, search for devices, and initiate pairing. The paring process is slightly different depending on the dongle, so follow the directions on the Pi and on the phone. The phone may provide a random PIN, and bluethoothctl will ask you to confirm the PIN. Enter 'yes'. Then click 'pair' on the phone. Or, The phone will ask you to enter a PIN code. Enter '0000' on the phone, and bluetoothctl will ask you for a PIN code. Enter the same code. In either case, bluetoothctl should inform you that pairing was successful. It will then ask you to authorize the connection. Enter 'yes'.
Now trust the mobile device (notice that bluetoothctl features auto-complete, so you can type the first few characters of the device's bluetooth address (which was displayed a few lines previously) and hit <tab> to complete the address.
NOTE: Whenever you see 'AA:BB:CC:DD:EE:FF' or 'AA_BB_CC_DD_EE_FF' in this guide, replace it with the actual address of your mobile Bluetooth device, in the proper format (colons or underscores).
Quit bluetoothctl with 'quit'.