[BUG_FIXED] Fix crash bug on second view (startup) while session snapshot is enabled.

git-svn-id: svn://svn.tuxfamily.org/svnroot/notepadplus/repository/trunk@1228 f5eea248-9336-0410-98b8-ebc06183d4e3
[NEW_FEATURE] Automatic Backup System: uniq untitled tab name.

git-svn-id: svn://svn.tuxfamily.org/svnroot/notepadplus/repository/trunk@1229 f5eea248-9336-0410-98b8-ebc06183d4e3