add JSON support, add JSONHelper
commit-3-16-1-57
Merge pull request #9 from roselone/master

add json
commit-3-16-2-37
Merge remote-tracking branch 'origin/master'
commit-3-16-2-56
Merge pull request #17 from bxl1989/master

modyfiy user userManager plan planManager
modfiy JSONHelper
Merge remote-tracking branch 'origin/master'
modfiy JSONHelper
Merge pull request #10 from roselone/master

modify json
commit-3-16-11-15
Merge pull request #18 from bxl1989/master

pull Plan Manager
Merge pull request #20 from purejade/master

update GUI
Merge pull request #21 from purejade/master

MainWindow
Merge pull request #3 from roselone/master

wjy gui