Merge pull request #1 from TopLittlebob/master

1.add SectorSelectDelegate for implement sector selection
commit
Merge pull request #2 from TopLittlebob/master

unified CenterShape and sectors position to one position
Merge branch 'master' of https://github.com/TopLittlebob/KillShape

add random polygon method
1.add the action of polygon drop from the top. 2.BUG:can't remove the polygon one by one
Merge branch 'master' of https://github.com/GitManager/KillShape
Merge branch 'ht'

Conflicts:
	Classes/MainScene.cpp
	Classes/MainScene.h

1.add random generate shape
2.add shape action