[BUG_FIXED] (Author: FLS) Fix a crash bug on uncommenting.

git-svn-id: svn://svn.tuxfamily.org/svnroot/notepadplus/repository/trunk@1023 f5eea248-9336-0410-98b8-ebc06183d4e3
[NEW_FEATURE] (Author: FLS) Remember folding states for each file in session.

git-svn-id: svn://svn.tuxfamily.org/svnroot/notepadplus/repository/trunk@1024 f5eea248-9336-0410-98b8-ebc06183d4e3