Merge pull request #2 from CalvertYang/master

add condition to wizzard commit
Merge pull request #3 from CalvertYang/master

add wizzard commit condition
add UML sechma to class
Merge branch 'master' of https://github.com/AndyYou/NDBackuper
Merge pull request #9 from AndyYou/master

add UML sechma to class