updated for version 7.4.279
Problem:    globpath() returns a string, making it difficult to get a list of
	    matches. (Greg Novack)
Solution:   Add an optional argument like with glob(). (Adnan Zafar)
Added tag v7-4-279 for changeset 8e9db1f27a00
updated for version 7.4.280
Problem:    When using a session file the relative position of the cursor is
	    not restored if there is another tab. (Nobuhiro Takasaki)
Solution:   Update w_wrow before calculating the fraction.
Added tag v7-4-280 for changeset daf7e98675cf
updated for version 7.4.281
Problem:    When a session file has more than one tabpage and 'showtabline' is
	    one the positions may be slightly off.
Solution:   Set 'showtabline' to two while positioning windows.
Added tag v7-4-281 for changeset 24c90f1fec85