split migration into registration and application
set version when specifying migration block
add test to show how to delete objects in a migration
Merge branch 'master' into al-migration
Merge branch 'master' into al-migration
fix error messages for property mismatches requiring migrations:
Merge branch 'al-migration' of https://github.com/realm/realm-objc into al-migration
merge fix
rework schema initialization
reuse realm instance for auto migration
fix tests/changelog
fix migration example
Merge branch 'master' into al-migration
fixes for examples
typos
changelog
Update CHANGELOG.md
merge master
merge fix
pr fixes