-- maximum score in range feature --
forgot to add two more files
(grafted from ef63655e66585dcd55eb583618923ce40a3f5ace)

--HG--
extra : source : ef63655e66585dcd55eb583618923ce40a3f5ace
add feature check maximum score in submission ranges
available in the [result] admin menu.
A user can enter a range of submissions id and the maximum score per each user,problem
among the submission ranges will be reported
(grafted from a9d427f3be11871c9948750e94ba5ae988f24eb7)

--HG--
extra : source : a9d427f3be11871c9948750e94ba5ae988f24eb7