Update Store#waitFor documentation
Update Store#waitFor documentation

Fixes #87

nagyistoce/fluxxor,BinaryMuse/fluxxor,STRML/fluxxor,hoanglamhuynh/fluxxor,webcoding/fluxxor,andrewslater/fluxxor,hoanglamhuynh/fluxxor,dantman/fluxxor,davesag/fluxxor,davesag/fluxxor,dantman/fluxxor,alcedo/fluxxor,thomasboyt/fluxxor,chimpinano/fluxxor,vsakaria/fluxxor,dantman/fluxxor,chimpinano/fluxxor,hoanglamhuynh/fluxxor,chimpinano/fluxxor,demiazz/fluxxor,davesag/fluxxor,STRML/fluxxor,VincentHoang/fluxxor,VincentHoang/fluxxor,nagyistoce/fluxxor,nagyistoce/fluxxor,SqREL/fluxxor