Problem:    Using \{n,m} in an autocommand pattern no longer works.
            Specifically, mutt temp files are not recognized. (Gary Johnson)
Solution:   Make \\\{n,m\} work.

Problem:    Cursor not restored after InsertEnter autocommand if it moved to
            another line.
Solution:   Also restore if the saved line number is still valid.  Allow
            setting v:char to skip restoring.

Add missing test files.

Problem:    For some compilers the error file is not easily readable.
Solution:   Use QuickFixCmdPre for more commands. (Marcin Szamotulski)

Problem:    Still read modelines for ":doautocmd".
Solution:   Move check for <nomodeline> to separate function.

Problem:    There is no way to avoid ":doautoall" reading modelines.
Solution:   Add the <nomodeline> argument. Adjust documentation.

Problem:    Can't intercept a character that is going to be inserted.
Solution:   Add the InsertCharPre autocommand event. (Jakson A. Aquino)

Problem:    Can't use cscope with QuickFixCmdPre and QuickFixCmdPost.
Solution:   Add cscope support for these autocmd events. (Bryan Venteicher)