a merge version
add some http request method and variables
fixing json deserialization function, adding HttpRemoteServer for simulation
merge from origin/zjw
add some UI forms for login
add deserilization function for questionAnswerList
fix sql of create table bug,adding form move handle for some form
Merge remote-tracking branch 'origin/zhangjc' into release
add interface
addcourse ui and course interface almost done
merge orgin/release