Re-added doc for expire_page introduced in 8690d67 and removed in fa9215d concerning #116
Re-added doc for expire_page introduced in 8690d67 and removed in fa9215d concerning #116

wycats/merb,wycats/merb,merb/merb,wycats/merb,wycats/merb,wycats/merb,merb/merb,merb/merb