updated for version 7.4.014
Problem:    MS-Windows: check for writing to device does not work.
Solution:   Fix #ifdefs. (Ken Takata)
Added tag v7-4-014 for changeset 9801d06e7b4c
updated for version 7.4.015
Problem:    MS-Windows: Detecting node type does not work for multi-byte
	    characters.
Solution:   Use wide character function when needed. (Ken Takata)
Added tag v7-4-015 for changeset a7478f9f2551