Fix some TTL and origTTL issues
Fix some TTL and origTTL issues

weekface/skydns,ZeaLoVe/skydns,skynetservices/skydns,yonglehou/skydns,netf/skydns,zhang0137/skydns,no2key/skydns,nicescale/skydns,erimatnor/skydns-kubernetes,AdoHe/skydns,loveshell/skydns,andrewrothstein/skydns,tuannvm/skydns,tonicbupt/skydns,zvelo/zvelo-skydns,hw-qiaolei/skydns,vinhhrv/skydns,smarterclayton/skydns