Changes in Notepad++ 5.1:
1. Make Notepad++ Unicode-compliant application(Unicode path supported).
2. Fix crash issue due to the incoherent modification/creation date.
3. Fix tag match highlighting mismatched bug.
4. Make tag match highlighting on non html zone optional.
5. Refine the Save/Open file directory settings (follow tab/last operation/user defined dir).
6. Add "Doc go to new instance" and "Doc open in new instance" features.
7. Add new pluin notification NPPN_DOCACTIVATED and NPPN_LANGCHANGED.
8. Fix context menu incorrect setting crash bug.
9. Fix a problem with Incremental search+UTF8 in win9x.
10. Fix bug with CPP lexer keyword list.