- enhancement: auto save/restore debug panel's current tab
- fix: correctly restore left(explorer) panel's current tab
- enhancement: auto close non-modified new editor after file/project openned;
- fix: project files openned by double click in bookmark/breakpoint panel may cause app crash when closed.
- fix: When open a project that's already openned, shouldn't close it.
- enhancement: When open a project, let user choose weither open it in new window or replace the already openned project
- enhancement: project and non-project files use different bookmark view (auto switch when switch editors)
- enhancement: auto merge when save bookmarks.