Fixes and improvements for FR 144 (SF version). Tested and working.
Instrument: also render sound for MIDI-based instruments when muted

In order to provide smooth muting functionality (i.e. immediate proper
sound when unmuting) always render audio buffers for MIDI-based
instruments. This is more important than potentially reduced CPU usage
while muted.

Closes #69.
AudioJack: replaced old Uint32 type
Merge pull request #103 from JohannesLorenz/stable-0.4

Fixes and improvements for FR 144 (SF version). Tested and working.
Merge pull request #104 from diizy/stable-0.4

Lots of UI stuff again
UI: increased font sizes

As texts were not readable on high resolution screens the font size for
many widgets has been changed.

Closes #82.
InstrumentTrack: shorter label for FX channel spinbox
InstrumentSoundShapingView: shorter label for filter frequency knob
LedCheckBox: fixed label alignment

After switching to wide rectangular LED pixmaps and increasing the font
size we need to adjust aligment of label.
Timeline: use right click + shift to move left loop point

Moving the left loop point is now possible using right click + shift
instead of the middle mouse button (which is difficult on laptops).

Furthermore some coding style improvements.

Closes #81.
Add "stutter" capability to the audio file processor.
fix all warnings and add -Werror
Merge pull request #108 from groboclown/stable-0.4

Add "stutter" capability to the audio file processor.
Merge pull request #102 from LMMS/warnings

fix all warnings and add -Werror
Stylesheet, wrench icon, 3osc logo