deploy eclipse plugin:
1. Left click you plugin project, select “Export…”;
2. In Select page, select “Deployable plug-ins and fragments”, click Next;
3. Choose the directory which you want to save your plug-ins, clicn Finish;
4. In your directory will create a dirctory which name is plugins, and your
plugins is in this directory;
5. copy generated jar file to eclipse/plugins dictory, it should work, if
not, use eclipse -clean