Version 0.3.1

Version 0.3.1 Release. Changelog (since 0.3.0):

• Improve performance of a task distributing content between shards.

• Add QuickStore. It stores data in-memory, but also has durability and rollbacks.

• Improve sorting performance, updates and background tasks are 5x faster.

• Reduce memory footprint, background task no longer load entire shard into memory.

• Reduce number of opened file handles.

release-0.1

First version of IODB