Fixed the redirect back to current page (after sign in, sign out, sign up, update) like suggested on devise wiki.
Fixed the redirect back to current page (after sign in, sign out, sign up, update) like
suggested on devise wiki.

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