Prevent recursive calls to  DatabaseAuthenticatable#super_authenticate!
Prevent recursive calls to  DatabaseAuthenticatable#super_authenticate!

In development rails might reload this class a few times, which was causing
the alias_method to be called more than once and resulting in recursion
when calling #authenticate!

refs #1078

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