[BUG_FIXED] (Author: Andreas Jonsson) Fix rename not replacing the existing file.

git-svn-id: svn://svn.tuxfamily.org/svnroot/notepadplus/repository/trunk@1184 f5eea248-9336-0410-98b8-ebc06183d4e3
[BUG_FIXED] Remove extension as from Haskell.

git-svn-id: svn://svn.tuxfamily.org/svnroot/notepadplus/repository/trunk@1185 f5eea248-9336-0410-98b8-ebc06183d4e3