Modifications to let admins create conferences in any room and be moderator in any room who they join.
Modifications to let admins create conferences in any room and be moderator in any room who they join.

refs #1513

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