updated for version 7.4.377
Problem:    When 'equalalways' is set a split may report "no room" even though
	    there is plenty of room.
Solution:   Compute the available room properly. (Yukihiro Nakadaira)
Added tag v7-4-377 for changeset 255561411d7a
updated for version 7.4.378
Problem:    Title of quickfist list is not kept for setqflist(list, 'r').
Solution:   Keep the title.  Add a test. (Lcd)
Added tag v7-4-378 for changeset 75ae211df37d