Get info in the Cinema 4d R15 or R14 Folder, and set the permission for Read & Write to your user, admin and everyone, choose your user, click in the action button, choose Apply to enclosed items.
Copy VrayBridge folder in /Applications/MAXON/Cinema 4D R/14 /15 plugins folder.
Go in Cinema 4D R14 / 15 Folder, choose Cinema 4D.app, right click on it, choose "Show Package Contents", go in Contents/MacOS Folder and copy the 5 .dylib files from CommonLibs here.
Use the xf-vray125 keygen to create the VrayBridge.key with your Cinema4D Serial. To get your serial go to Help - Personalize within Cinema 4D. Your serial number is at the upper right hand corner. Save the VrayBridge.key to /Applications/MAXON/Cinema 4D R14/15 folder.
Then open a terminal, type "sudo chmod 644 “drag VrayBridge.key here" all without the quotes and enter your password.
Thats it, Start Cinema 4D and Enjoy it.