updated for version 7.4.343
Problem:    matchdelete() does not always update the right lines.
Solution:   Fix off-by-one error.  (Ozaki Kiichi)
Added tag v7-4-343 for changeset 539ce56d8f35
updated for version 7.4.344
Problem:    Unessecary initializations and other things related to
	    matchaddpos().
Solution:   Code cleanup. (Alexey Radkov)
Added tag v7-4-344 for changeset ce284c205558