allow client input lowercast commond#2

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Veklip wants to merge 3 commits intoYanKawaYu:masterfrom

Commits on May 1, 2015

allow client input lowercast commond
kkk
committed
handle unrecognized command
kkk
committed

Commits on May 13, 2015

conver raw time format to humman time format
Veklip
committed