v0.5.11

JLD2 v0.5.11

Diff since v0.5.10

• enable Upgrade of mutable structs inside Union types

Merged pull requests:

• Cleanup of Lookup3 hash (#626) (@nhz2)
• Fix unions for upgrades on mutable structs (#629) (@IanButterworth)

Closed issues:

• InexactError: convert(UInt32, -1761558062) (#619)
• Larger file size with compression than without (#625)
• Bug in Union loading using Upgrade (#628)