FileDialog: add EXPORT macro

The FileDialog class is used by plugins and therefore needs to be exported
for platforms like Win32.
LADSPA/SWH: fixed compiler warnings resulting in Win32 build failure
MidiWinMM: adapted MIDI changes

Fixes build failure after recent API changes.
sfxr: fixed Win32 build

Need time.h for the time() function.
clearer configure output for libsamplerate
add .mailmap to make git shortlog more accurate
add another mailmap entry
add TIMEOUT 1 to git shortlog in configure script

For some reason executing git shortlog in Qt Creator cmake project
import hangs. This is a workaround so that it is still possible to
use Qt Creator without changing the normal build, in which git shortlog
will certainly complete in 1 second.
Added pitch support: Now the pitch knob and the key being pressed have effect on the pitch produced.
remove debug message
Merge pull request #159 from wongcc966422/sfxr

sfxr plugin: Added pitch support
fix incorrect type; makes smooth knobs actually smooth
Reduced the volume
Merge pull request #161 from wongcc966422/sfxr

sfxr plugin: Reduced the volume
Fixed OpulenZ segfault bug when it is dropped on another instrument.
Amended initialize code
Changed the placement of code
added another author to the file
InstrumentTrack: check for instrument instance in processOutEvent()

There are situations where processOutEvent() is being called while
loading instrument track settings e.g. when loading the pitch model
whose dataChanged() signal is connected to InstrumentTrack::updatePitch()
which in turn calls processOutEvent(). At this time we do not have an
instrument instance and therefore have to skip processing.

Closes #164.
Merge pull request #162 from wongcc966422/opulenzInitializeVoices

Fixed OpulenZ segfault bug when it is dropped on another instrument.