Notepad++ 4.0 RC2

- Fix the crash issue.
- Add Docking feature for plugin dialogs.
- Fix the bug that current "open" and "save as" directory are inchanged with the shortcut Ctrl+Tab.
- Fix the bug that the new added languages in v3.9 can not be hidden from the language menu.
- Fix the volatile search direction bug.
- Fix the Tab display problem.
- Add Haskell, InnoSetup languages support.
- Add the option to open/save files in the last operation directory.
- Enhance Document switcher (MRU and switch crossing view abilities)
- Fix "Find Next" unicode bug for Find Replce Dialog.
- Support Unicode in displayed result of Find in files & Find in all opened files.
- Add Reload from disk feature.