[NEW] Add backup folder information so user can get back the modified file while crashing.

git-svn-id: svn://svn.tuxfamily.org/svnroot/notepadplus/repository/trunk@1244 f5eea248-9336-0410-98b8-ebc06183d4e3
[RELEASE] Notepad++ 6.6.4 Release.

git-svn-id: svn://svn.tuxfamily.org/svnroot/notepadplus/repository/trunk@1245 f5eea248-9336-0410-98b8-ebc06183d4e3