tree 553b0709d51e89221f7e41817439552fe70c40a6
parent 06543a541d6909739933fd1ca955654c6e5c28fa
author Allen Wang <Allen.Wang.123@outlook.com> 1545668897 +0800
committer 吴晟 Wu Sheng <wu.sheng@foxmail.com> 1545668897 +0800

Update: update traceTree (#212)

1. Add tooltip plugin.
2. Add the connection between timeline span & tree span.
3. remove unnessory event bind and nodes.
4. update the tree display.