Merge pull request #114 from liaoxuezhi/dev-refactor

清除popover for code view
Merge pull request #115 from liaoxuezhi/dev-refactor

popover code view
Merge pull request #116 from liaoxuezhi/dev-refactor

Dev refactor
Merge pull request #117 from liaoxuezhi/dev-refactor

remove dropmenu for code view
Merge pull request #118 from liaoxuezhi/dev-refactor

drop code view
Merge remote-tracking branch 'upstream/dev-refactor' into dev-refactor