new-line '\n' bug in my_parseXML.m

[karhohs]

xmlread() adds a newline character to every textnode. This creates a problem when using the eval().
eval([var1 '=' var2]) where var1=name and var2 = '''Fred\n''' leads to
name = 'Fred '
instead of the desired name = 'Fred\n'

[karhohs]

The solution involved screening text nodes for non-whitespace characters.