OpenCOLLADA for Maya 2015 not working correctly

Hi We are going to write several tutorials about exporting from Maya to COLLADA with OpenCOLLADA. I tried to install OpenCOLLADA for Maya 2015 (downloaded mll file from dropbox). We have already written the first tutorial

However, it looks like it can’t export the cameras correctly. Specially, it doesn’t export cameras+aims at all.
Moreover, I don’t see OpenCOLLADA export options in Maya 2015.
Any suggestions?