make uibutton support flip
Merge pull request #153 from htlxyz/v3quick_develop

make uibutton support flip
Merge commit '7a09693ff4eca2bc89fe4dd4a6f2ab68ce220694' into v3quick
modify uibutton flip
Merge pull request #154 from htlxyz/v3quick_develop

modify uibutton flip
Merge commit 'f2de1dec6ac51fd75b4e86016acf6138aa2d18a9' into v3quick
modify flipX
Merge pull request #155 from htlxyz/v3quick_develop

modify flipX
Merge branch 'v3quick_develop' into v3quick