Update compilation with Qt5.2.1
partial fix for Linux build
Merge pull request #2 from AntonioBL/qt5

Qt5 compilation
set pan to 0 for small soundfont, make small soundfont smaller by not saving unused sample and instruments
Merge pull request #3 from lasconic/fix-pan

set pan to 0 for small soundfont, make small soundfont smaller by not sa...
hack: attenuate samples before compressing