Gets comments in a box with the provided attributes.
		Args:
			box_key			key for box
			return			(status code, list of comment dicts)

def get_box_comments(self, box_key):
		'''Gets comments in a box with the provided attributes.
		Args:
			box_key			key for box
			return			(status code, list of comment dicts)
		'''
		uri = '/'.join([
						self.api_uri,
						self.boxes_suffix,
						box_key,
						self.comments_suffix
						])
		return self._req('get', uri)