Added the drawing of the note names.
Refactoring: Calculate the size of the tab widget based on the number of items.
Added an option do en/disable the note labels.
Merge remote-tracking branch 'ranft/notelabels-2' into stable-0.4
Song: use Kicker as default instrument in B+B-Editor

Using TripleOscillator as default instrument in B+B-Editor doesn't
make much sense so use Kicker instead.
DetectMachine.cmake: do not use lib64 as LIB_DIR anymore

Installing to $prefix/lib64 is not usual anymore and thus we change it here
to just install all libraries to $prefix/lib.
Fix import of 32-bit floating point samples
Merge pull request #14 from diizy/fix32

SampleBuffer: fix import of 32-bit floating point samples
TrackContainer, TrackContainerView: adopted coding style

Renamed file and class names.
SampleBuffer, SamplePlayHandle, SampleRecordHandle, SampleTrack: new coding style

Renamed file and class names.
Merge branch 'stable-0.4' into stable-0.4-new-fx-mixer
FxMixer: rewrote loop for adjusting FX channel models in deleteChannel()
Song: added missing refresh of FxMixerView when loading project

Missed this call when backporting.
FxMixerView: fixed clear()

Before calling refreshDisplay() we have to actually clear the backend model.