updated for version 7.4.284
Problem:    Setting 'langmap' in the modeline can cause trouble.  E.g. mapping
	    ":" breaks many commands. (Jens-Wolfhard Schicke-Uffmann)
Solution:   Disallow setting 'langmap' from the modeline.
Added tag v7-4-284 for changeset 3c35ca9666e8
updated for version 7.4.285
Problem:    When 'relativenumber' is set and deleting lines or undoing that,
	    line numbers are not always updated. (Robert Arkwright)
Solution:   (Christian Brabandt)
Added tag v7-4-285 for changeset 5cb1828fd005
updated for version 7.4.286
Problem:    Error messages are inconsistant. (ZyX)
Solution:   Change "Lists" to "list".
Added tag v7-4-286 for changeset be19015ef43c
updated for version 7.4.287
Problem:    Patches for .hgignore don't work, since the file is not in the
	    distribution.
Solution:   Add .hgignore to the distribution.  Will be effective with the
	    next version.
Added tag v7-4-287 for changeset 66fe4908b649
updated for version 7.4.288
Problem:    When 'spellfile' is set the screen is not redrawn.
Solution:   Redraw when updating the spelling info. (Christian Brabandt)
Added tag v7-4-288 for changeset 7965cb6a435a
updated for version 7.4.289
Problem:    Pattern with repeated backreference does not match with new regexp
	    engine. (Urtica Dioica)
Solution:   Also check the end of a submatch when deciding to put a state in
	    the state list.
Added tag v7-4-289 for changeset 99374096a76b
updated for version 7.4.290
Problem:    A non-greedy match followed by a branch is too greedy. (Ingo
	    Karkat)
Solution:   Add NFA_MATCH when it is already in the state list if the position
	    differs.
Added tag v7-4-290 for changeset b871734bf54e
updated for version 7.4.291
Problem:    Compiler warning for int to pointer of different size when DEBUG
	    is defined.
Solution:   use smsg() instead of EMSG3().
Added tag v7-4-291 for changeset b5972833add9
updated for version 7.4.292
Problem:    Searching for "a" does not match accented "a" with new regexp
	    engine, does match with old engine. (David Bürgin)
	    "ca" does not match "ca" with accented "a" with either engine.
Solution:   Change the old engine, check for following composing character
	    also for single-byte patterns.
Added tag v7-4-292 for changeset 60cdaa05a6ad
updated for version 7.4.293
Problem:    It is not possible to ignore composing characters at a specific
	    point in a pattern.
Solution:   Add the %C item.
Added tag v7-4-293 for changeset 10fc95f48546