remove unbutton setOpacity function for user can use setCascadeOpacityEnabled(true)
modify labelttf position
Merge pull request #144 from htlxyz/v3quick_develop

V3quick develop
update version
Merge pull request #145 from htlxyz/v3quick_develop

update version
Merge commit 'a427ecb9faa1bbba096a8462b52ca4229d72bea4' into v3quick