v1.0.1

API breaking changes

• None.

Enhancements

• Significantly improve performance of opening Realm files, and slightly
  improve performance of committing write transactions.

Bugfixes

• Swift: Fix an error thrown when trying to create or update Object instances via
  add(:_update:) with a primary key property of type RealmOptional.
• Xcode playground in Swift release zip now runs successfully.
• The key parameter of Realm.objectForPrimaryKey(_:key:)/ Realm.dynamicObjectForPrimaryKey(_:key:)
  is now marked as optional.
• Fix a potential memory leak when closing Realms after a Realm file has been
  opened on multiple threads which are running in active run loops.
• Fix notifications breaking on tvOS after a very large number of write
  transactions have been committed.
• Fix a "Destruction of mutex in use" assertion failure after an error while
  opening a file.
• Realm now throws an exception if an Object subclass is defined with a managed Swift lazy property.
  Objects with ignored lazy properties should now work correctly.
• Update the LLDB script to work with recent changes to the implementation of RLMResults.
• Fix an assertion failure when a Realm file is deleted while it is still open,
  and then a new Realm is opened at the same path. Note that this is still not
  a supported scenario, and may break in other ways.