updated for version 7.4.369
Problem:    Using freed memory when exiting while compiled with EXITFREE.
Solution:   Set curwin to NULL and check for that. (Dominique Pelle)
Added tag v7-4-369 for changeset 72ee0db83788
updated for version 7.4.370
Problem:    Linebreak test fails when encoding is not utf-8. (Danek Duvall)
Solution:   Split the test in a single byte one and a utf-8 one. (Christian
	    Brabandt)
Added tag v7-4-370 for changeset 50575818a97f
updated for version 7.4.371
Problem:    When 'linebreak' is set control characters are not correctly
	    displayed. (Kimmy Lindvall)
Solution:   Set n_extra. (Christian Brabandt)
Added tag v7-4-371 for changeset d44f298c43c7
updated for version 7.4.372
Problem:    When 'winminheight' is zero there might not be one line for the
	    current window.
Solution:   Change the size computations. (Yukihiro Nakadaira)
Added tag v7-4-372 for changeset a122efb555c4