0.7.4

Merge pull request #9 from Humbedooh/master

Update pypubsub to 0.7.4 from upstream

0.7.3 upstream merge

Merges in the changes from 0.7.3 upstream.

PyPubSub 0.7.3

• Address SQS timeouts
• Add secure topics

PyPubSub 0.7.2

Fixes async issue with SQS plugin

PyPubSub 0.7.1

• Use asyncio queues for modifying the list of events pending publishing to avoid potential race conditions.
• Minor tweak to the handling of backlog size
• Improved type checks
• Updated client examples

PyPubSub 0.7.0

• Allow for multiple subscriptions per stream

PyPubSub 0.6.3

• Addresses timeout issues with payload delivery for broken clients

PyPubSub 0.6.2

• fixes a configuration reference issue upstream

PyPubSub 0.6.1

• Added FS-backed persistant backlog storage for persisting backlog through restarts
• Addressed issues with aiohttp pipe writes not being coroutine-safe