主要更新：解决保存设置退出崩溃问题，增强文件搜索，增强备份功能等。具体更新：
* Fix the crash issue while saving settings on quit
* Fix the crash issue while using the command line with one launched Notepad++ instance
* Enhance Find in files feature:
* Improve Find in files user interface (more intuitive)
* The search result (also for find in all opened files) is docked on the bottom of Notepad++
* Recursive search is optional
* Search result is collapsable by file
* User defined keywords for search result
* Add tabbing interface in Find dialog : Find/Replace/Find in files
* Add clickable URL http link feature (double click to trigger)
* Add cmake language support
* Add mark all without launching Find dialog (Ctrl+M)
* Fix the ROFL (Recent Opened File List) bug : try to open a non-existing file from ROFL, the full file path doesn't be removed from ROFL
* Enhance the backup feature : in verbose mode, the file will be backed up in .\nppBackup directory
* Update Scintilla component to v1.73
