Use "find_each" in Space.calculate_last_activity_indexes!
Use "find_each" in Space.calculate_last_activity_indexes!

Better when the db has a lot of spaces.

refs #1938

akratech/Akraconference,mconftec/mconf-web-uergs,akratech/Akraconference,mconf-rnp/mconf-web,mconf/mconf-web,mconf-rnp/mconf-web,mconf-ufrgs/mconf-web,mconf/mconf-web,mconf-rnp/mconf-web,mconftec/mconf-web-uergs,akratech/Akraconference,mconf-ufrgs/mconf-web,mconftec/mconf-web-uergs,mconf/mconf-web,mconf/mconf-web,mconf-ufrgs/mconf-web,mconftec/mconf-web-uergs,mconf-ufrgs/mconf-web,akratech/Akraconference,mconf-rnp/mconf-web