Merge commit 'v0.8'
Merge commit 'v0.9'
Merge commit 'v1.0'
Merge commit 'v1.1'
Merge commit 'v1.2'
Merge commit 'v1.3'
Merge commit 'v1.4'
Merge branch 'master' into stable
Merge branch 'master' into stable
Merge branch 'master' into stable
fix sparrow bug