updated for version 7.4.530
Problem:    Many commands take a count or range that is not using line
	    numbers.
Solution:   For each command specify what kind of count it uses.  For windows,
	    buffers and arguments have "$" and "." have a relevant meaning.
	    (Marcin Szamotulski)
Added tag v7-4-530 for changeset 5a76e36f07b1
updated for version 7.4.531
Problem:    Comments about parsing an Ex command are wrong.
Solution:   Correct the steop numbers.
Added tag v7-4-531 for changeset 2c0cddd0df8c