[BUG_FIXED] Fix a crash issue while typing Page up / Page down.

git-svn-id: svn://svn.tuxfamily.org/svnroot/notepadplus/repository/trunk@1310 f5eea248-9336-0410-98b8-ebc06183d4e3
[NEW_FEATURE] auto-insert skipping character feature works for "" and '' now.

git-svn-id: svn://svn.tuxfamily.org/svnroot/notepadplus/repository/trunk@1311 f5eea248-9336-0410-98b8-ebc06183d4e3