Upped the JUCE and OS X version number to 1.2.0
Changed a couple of nullptr to NULL to try and
prevent crashes on closed caused by Sample mode.
Not sure if this has fixed it though.
Upped the version number on Windows to 1.2.0.
Fixed a bug where the basic demo project
wasn't being set to read-only.
Renamed the Sampler mode 'Drum hit settings'
file to 'One-shot settings'.