Now room keys (private/public) can be changed while a room is running.
Now room keys (private/public) can be changed while a room is running.

refs #836

mconftec/mconf-web-mytruecloud,mconf-ufrgs/mconf-web,akratech/Akraconference,fbottin/mconf-web,mconftec/mconf-web-uergs,mconftec/mconf-web-santacasa,mconf-ufrgs/mconf-web,mconftec/mconf-web-cedia,becueb/MconfWeb,amreis/mconf-web,mconftec/mconf-web-uergs,lfzawacki/mconf-web,mconftec/mconf-web-santacasa,mconftec/mconf-web-uergs,amreis/mconf-web,mconftec/mconf-web-mytruecloud,lfzawacki/mconf-web,mconf-ufrgs/mconf-web,fbottin/mconf-web,mconf-ufrgs/mconf-web,fbottin/mconf-web,mconftec/mconf-web-ufpe,lfzawacki/mconf-web,becueb/MconfWeb,mconf/mconf-web,akratech/Akraconference,mconftec/mconf-web-uergs,amreis/mconf-web,fbottin/mconf-web,becueb/MconfWeb,mconftec/mconf-web-santacasa,lfzawacki/mconf-web,mconftec/mconf-web-ufpe,mconf/mconf-web,mconf/mconf-web,mconftec/mconf-web-ufpe,mconf-rnp/mconf-web,mconftec/mconf-web-ufpe,mconf-rnp/mconf-web,mconf-rnp/mconf-web,mconftec/mconf-web-cedia,becueb/MconfWeb,mconftec/mconf-web-cedia,mconf/mconf-web,akratech/Akraconference,mconf-rnp/mconf-web,amreis/mconf-web,mconftec/mconf-web-mytruecloud,mconftec/mconf-web-santacasa,mconftec/mconf-web-mytruecloud,akratech/Akraconference