Multiline text in label objects

[Bruce Sherwood]

The label object now accepts a multiline text, either using the Python triple-quote version such as this:

s = '''This is a multiline

paragraph that now works

in a label object.'''

or a string that contains explicit newline character ('\n'):

s = 'This is a multiline \nparagraph that now works \nin a label object.'

label(text=s)