Unclosed client session warning

[XayOn]

Describe the bug After any search, a few warnings arise:

client_session: <aiohttp.client.ClientSession object at 0x7f424af25250>
Unclosed connector
connections: ['[(<aiohttp.client_proto.ResponseHandler object at 0x7f424a5cd7c0>, 73452.801605335)]', '[(<aiohttp.client_proto.ResponseHandler object at 0x7f424a5cde80>, 73454.336132291)]', '[(<aiohttp.client_proto.ResponseHandler object at 0x7f424a5dd160>, 73454.778073354)]', '[(<aiohttp.client_proto.ResponseHandler object at 0x7f424a5dd9a0>, 73455.054384362)]', '[(<aiohttp.client_proto.ResponseHandler object at 0x7f424a5e71c0>, 73456.316529531)]', '[(<aiohttp.client_proto.ResponseHandler object at 0x7f424a5cdf40>, 73459.285432881)]', '[(<aiohttp.client_proto.ResponseHandler object at 0x7f424a5f5b20>, 73459.470453832)]', '[(<aiohttp.client_proto.ResponseHandler object at 0x7f424a5dda60>, 73460.206759501)]', '[(<aiohttp.client_proto.ResponseHandler object at 0x7f424aeffbe0>, 73460.423563735)]']
connector: <aiohttp.connector.TCPConnector object at 0x7f424af25520>

To Reproduce Steps to reproduce the behavior:

1. Install katcr latest release
2. Execute a search

Expected behavior No warnings issued, this way the user could script the output.