Add Mac OSX support. Tested with Qt-5.3 and libusb-1.0.18.
Creating an application bundle which contains firmware.bin, dfu-util and icon file. COMPILE.macx.md is how to build LabTool.app and deploy on OSX and Qt Creator.
Merge pull request #4 from ttrftech/macosx_PR

Add Mac OSX support. Tested with Qt-5.3 and OS 10.8.