osx release packaged as root

[roglio]

The current release has been packaged as root and cannot be executed.
Fixing it needs to change the ownership of the .app folder to the current user:
sudo chown -R currentuser:staff arduinoeditor.app
But is not enough because the archive does not contains the execution flag set for the app and subfolders:
sudo chmod -R +x arduinoeditor.app

These two command will fix the issue but maybe the next release should be already ready for exploitation.

Nice work! I like it!