updated for version 7.4.421
Problem:    Crash when searching for "\ze*". (Urtica Dioica)
Solution:   Disallow a multi after \ze and \zs.
Added tag v7-4-421 for changeset 3ee39fe2df7d
updated for version 7.4.422
Problem:    When using conceal with linebreak some text is not displayed
	    correctly. (Grüner Gimpel)
Solution:   Check for conceal mode when using linebreak. (Christian Brabandt)
Added tag v7-4-422 for changeset 69da1498ce89
updated for version 7.4.423
Problem:    expand("$shell") does not work as documented.
Solution:   Do not escape the $ when expanding environment variables.
Added tag v7-4-423 for changeset 96a4fa8e530c
updated for version 7.4.424
Problem:    Get ml_get error when using Python to delete lines in a buffer
	    that is not in a window.  issue 248.
Solution:   Do not try adjusting the cursor for a different buffer.
Added tag v7-4-424 for changeset 85a1802ae810
updated for version 7.4.425
Problem:    When 'showbreak' is used "gj" may move to the wrong position.
	    (Nazri Ramliy)
Solution:   Adjust virtcol when 'showbreak' is set. (Christian Brabandt)
Added tag v7-4-425 for changeset 2e804ebb3ee8
Update runtime files.
updated for version 7.4.426
Problem:    README File missing from list of files.
Solution:   Update the list of files.
Added tag v7-4-426 for changeset 7ab9a9cf2859
updated for version 7.4.427
Problem:    When an InsertCharPre autocommand executes system() typeahead may
	    be echoed and messes up the display. (Jacob Niehus)
Solution:   Do not set cooked mode when invoked from ":silent".
Added tag v7-4-427 for changeset fca35aa9380a
updated for version 7.4.428
Problem:    executable() may return a wrong result on MS-Windows.
Solution:   Change the way SearchPath() is called. (Yasuhiro Matsumoto, Ken
	    Takata)
Added tag v7-4-428 for changeset 1fe61f6d5207