Apple has released an update to GarageBand for the iPad adding audio out support and the ability to import audio files. GarageBand 1.0.1 now supports audio output via AirPlay, Bluetooth A2DP and HDMI using the Apple Digital AV Adapter and users can also now import AIFF, WAV and CAF audio files and Apple Loops directly into the app. Additional improvements include the ability to copy and paste audio clips into GarageBand from other supported apps on…