Enable indexing string primary keys
Update to core 0.85.0
Merge pull request #1031 from realm/tg-core-85

Update to core 0.85.0
new in-memory realm api
tests
make in-memory realms used writelog
changelog
Update CHANGELOG.md
Merge pull request #888 from realm/tg-enable-pk-index

Enable indexing string primary keys
Merge pull request #1030 from realm/al-im

Working in-memory Realms
merge master