git: update 2.0.0 bottle.
ibeacon 1.0.1 (new formula)

Add formula for Radius Networks iBeacon CLI. A utility for scanning and
transmitting iBeacon profiles over Bluetooth 4.0.

https://github.com/RadiusNetworks/ibeacon-cli

Updated based on feedback:

- Download code from tarball
- Prefer double quotes in require
- Fix test for version string
- Require mavericks (for CLPeripheral#identifier)
git: update 2.0.0 bottle.
ibeacon: add 1.0.1 bottle.