The file library.js is somehow missing for the 64 build for OSX. Thus QCAD is not starting.

When starting QCAD directly from the terminal the following error message is produced:

```
QCAD version 3.14.0
12:21:24: Debug: RCamScriptsPlugin: init
12:21:24: Debug: RDwgPlugin::init
12:21:24: Debug: RDxfPlugin::init
12:21:24: Debug: RPolygonPlugin::init: trial
12:21:24: Debug: RProScriptsPlugin::init: trial
12:21:24: Debug: RTriangulationPlugin::init: trial
Warning: RScriptHandlerEcma::eval: script engine exception: "Error: include: cannot read file 'library.js'"
Warning: "<global>() at scripts/autostart.js:20"
Warning: At least one uncaught exception:
Warning: "<global>() at scripts/autostart.js:20"
12:21:24: Debug: "<global>() at 20"
12:21:24: Debug: counter: "RPainterPath" : 32
```

Acutally I'm getting a lot of messages like

```
16.04.2016, 12:24:45 CoreServicesUIAgent[34824]: error -1 while removing quarantine data on path /Users/me/Downloads/QCAD.app/Contents/Frameworks/QtCLucene.framework/QtCLucene
```

when starting it for the first time. This does not happen with the 32 bit version.