updated for version 7.4.001
Problem:    Character classes such as [a-z] to not react to 'ignorecase'.
	    Breaks man page highlighting. (Mario Grgic)
Solution:   Add separate items for classes that react to 'ignorecase'.  Clean
	    up logic handling character classes.  Add more tests.
Added tag v7-4-001 for changeset 3e9107b86b68
updated for version 7.4.002
Problem:    Pattern with two alternative look-behind matches does not match.
	    (Amadeus Demarzi)
Solution:   When comparing PIMs also compare their state ID to see if they are
	    different.
Added tag v7-4-002 for changeset e29f11399cce
updated for version 7.4.003
Problem:    Memory access error in Ruby syntax highlighting. (Christopher Chow)
Solution:   Refresh stale pointer. (James McCoy)
Added tag v7-4-003 for changeset 560a6a232950
updated for version 7.4.004
Problem:    When closing a window fails ":bwipe" may hang.
Solution:   Let win_close() return FAIL and break out of the loop.
Added tag v7-4-004 for changeset f6247eaf4e1d
updated for version 7.4.005
Problem:    Using "vaB" while 'virtualedit' is set selects the wrong area.
	    (Dimitar Dimitrov)
Solution:   Reset coladd when finding a match.
Added tag v7-4-005 for changeset 3640cf4c0d4b
update runtime files
updated for version 7.4.006
Problem:    mkdir("foo/bar/", "p") gives an error message. (David Barnett)
Solution:   Remove the trailing slash. (lcd)
Added tag v7-4-006 for changeset 2374a05efe20
updated for version 7.4.007
Problem:    Creating a preview window on startup leaves the screen layout in a
	    messed up state. (Marius Gedminas)
Solution:   Don't change firstwin. (Christian Brabandt)
Added tag v7-4-007 for changeset 4fe1dfc7014e
Merge branch 'vim'
Merge branch 'upstream'

# By Bram Moolenaar
# Via Bjorn Winckler (1) and Bram Moolenaar (1)
* upstream:
  Added tag v7-4-007 for changeset 4fe1dfc7014e
  updated for version 7.4.007 Problem:    Creating a preview window on startup leaves the screen layout in a 	    messed up state. (Marius Gedminas) Solution:   Don't change firstwin. (Christian Brabandt)
  Added tag v7-4-006 for changeset 2374a05efe20
  updated for version 7.4.006 Problem:    mkdir("foo/bar/", "p") gives an error message. (David Barnett) Solution:   Remove the trailing slash. (lcd)
  Added tag v7-4-005 for changeset 3640cf4c0d4b
  updated for version 7.4.005 Problem:    Using "vaB" while 'virtualedit' is set selects the wrong area. 	    (Dimitar Dimitrov) Solution:   Reset coladd when finding a match.
  Added tag v7-4-004 for changeset f6247eaf4e1d
  updated for version 7.4.004 Problem:    When closing a window fails ":bwipe" may hang. Solution:   Let win_close() return FAIL and break out of the loop.
  Added tag v7-4-003 for changeset 560a6a232950
  updated for version 7.4.003 Problem:    Memory access error in Ruby syntax highlighting. (Christopher Chow) Solution:   Refresh stale pointer. (James McCoy)
  Added tag v7-4-002 for changeset e29f11399cce
  updated for version 7.4.002 Problem:    Pattern with two alternative look-behind matches does not match. 	    (Amadeus Demarzi) Solution:   When comparing PIMs also compare their state ID to see if they are 	    different.
  Added tag v7-4-001 for changeset 3e9107b86b68
  updated for version 7.4.001 Problem:    Character classes such as [a-z] to not react to 'ignorecase'. 	    Breaks man page highlighting. (Mario Grgic) Solution:   Add separate items for classes that react to 'ignorecase'.  Clean 	    up logic handling character classes.  Add more tests.