- Add context_info from failed requests to BoxAPIException instances.
Bugfixes
- `Item.remove_shared_link()` was trying to return an incorrect
(according to its own documentation) value, and was also attempting
to calculate that value in a way that made an incorrect assumption
about the API response. The latter problem caused invocations of the
method to raise TypeError. The method now handles the response
correctly, and correctly returns type `bool`.