Wijisqs

- set `botocore` retries to 1: https://github.com/komuw/wijisqs/pull/51

- lower `botocore` connect and read timeout values: https://github.com/komuw/wijisqs/pull/50

- bugfix: with `batch_send=True`, wijisqs could fail to send some residual messages to AWS: https://github.com/komuw/wijisqs/pull/46
- For `long_poll` when we call AWS, get messages and populate `recieveBuf`; hand those msgs over to `wiji` right away instead of sleeping.
This should lead to faster processing: https://github.com/komuw/wijisqs/pull/45

- for empty long-polled queues, sleep exponetially: https://github.com/komuw/wijisqs/pull/43
- cache the event loop for perfomance reasons: https://github.com/komuw/wijisqs/pull/44
- upgrade to latest `wiji` version and handle it's new changes: https://github.com/komuw/wijisqs/pull/40

- for empty long-polled queues, sleep exponetially: https://github.com/komuw/wijisqs/pull/43
- cache the event loop for perfomance reasons: https://github.com/komuw/wijisqs/pull/44

- upgrade to latest `wiji` version and handle it's new changes: https://github.com/komuw/wijisqs/pull/40