Filtatron 1.4.3 brings long awaited features and fixes

Here's what's new with Filtatron:

• Added support for landscape orientation on the iPad
• Replaced iOS settings section with an in-app settings menu on the About panel
• Added support for enabling/disabling background audio operation
• Added 'auto' audio input setting to let Filtatron automatically decide what the most appropriate audio input device is
• Fixed knobs slew rate setting, it wasn't being used by most of the knobs
• Added more slew rate options
• Fixes for very rare crashes in the audio pocessing
• Increased maximum buffer size to 4096
• Fixed interruption behavior from Siri