[BUG_FIXED] Prevent Notepad++ from crash due to indexation in clipbordHistory object.

git-svn-id: svn://svn.tuxfamily.org/svnroot/notepadplus/repository/trunk@1262 f5eea248-9336-0410-98b8-ebc06183d4e3
[BUG_FIXED] (Author: Andreas Jonsson) Fix the bug that "backslash is escape char for SQL" setting is not saved correctly.
[BUG_FIXED] (Author: Andreas Jonsson) Fix the bug that user cannot disable "backslash is SQL escape char" without restarting.

git-svn-id: svn://svn.tuxfamily.org/svnroot/notepadplus/repository/trunk@1263 f5eea248-9336-0410-98b8-ebc06183d4e3