fix graph display and mouse hover; fix duplicate data in one timestamp
Merge branch 'master' into 'master'

继续图
logging application exception
Merge remote-tracking branch 'pl/master'
fix empty container id bug
Merge branch 'log' into 'master'

fix empty container id bug

@linzhe

快合
Merge remote-tracking branch 'pl/master'
Merge branch 'master' into 'master'

+logging
add build log and test log
Merge branch 'log' into 'master'

+logs