Update view.py

Junos allows non-ASCII characters in interface descriptions. 
Some characters cannot be converted safely into string. In this case it is better to replace them with '?' or ignore. 

>>> astype = type('str')
>>> astype(u'\x96')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
UnicodeEncodeError: 'ascii' codec can't encode character u'\x96' in position 0: ordinal not in range(128)