Trylle

V1.0.0 marks the release of a long term stable API.

What's Changed

#695 Add API SaveChangeSet to save the changeset as a new version.
#703 New APIs NewCompressExporter/NewCompressImporter to support more compact snapshot format.
#729 Speedup Genesis writes for IAVL, by writing in small batches.
#726 Make KVPair and ChangeSet serializable with protobuf.
#718 Fix traverseNodes unexpected behaviour
#770 Add WorkingVersion()int64 API.

#773 Fix memory leak in Import.
#801 Fix rootKey empty check by len equals 0.
#805 Use sync.Map instead of map to prevent concurrent writes at the fast node level

#735 Pass logger to NodeDB, MutableTree and ImmutableTree
#646 Remove the orphans from the storage
#777 Don't return errors from ImmutableTree.Hash, NewImmutableTree
#815 NewMutableTreeWithOpts was removed in favour of accepting options via a variadic in NewMutableTree
#815 NewImmutableTreeWithOpts is removed in favour of accepting options via a variadic in NewImmutableTree
#646 Remove the DeleteVersion, DeleteVersions, DeleteVersionsRange and introduce a new endpoint of DeleteVersionsTo instead

Full Changelog: https://github.com/cosmos/iavl/compare/v0.19.1...v1.0.0