query_entities() doesn't work for retrieving data in unicode

[yuvalkalev]

I've encountered a problem when trying to retrieve data from a table which contains unicoded chars (hebrew in my case).
When using the get_entity() API on the table service, i had no problem getting the data correctly.
When using query_entities() on the same table with the same data i got an encoding error:

'ascii' codec can't encode characters in position 897-900: ordinal not in range(128)

Why should the output of query_entities() encounter an encoding problem when get_entity() doesn't?
Again, the table i've tested contains 1 row that has 1 column with a word in hebrew - get_entity() works, query_entities() fails.

[huguesv]

Another user encountered Unicode issues and suggested a fix. We have a pull request pending at #60

Please let us know if that doesn't solve the encoding error you are getting. Thanks!