Object links now displayed as MyClassName(somePropertyValue, someOtherPropertyValue […])
Within an object link, arrays, object links, dates and bools receive special formatting
Formatting split out to separate method, which calls itself for object links (but only one level of recursion)
Don't download the core when a local build is present

There's no particularly pleasant way to set REALM_CORE_VERSION when
building from Xcode, so try to automatically detect that the copy of the
core was built locally and leave it alone if so.
Merge pull request #736 from GreatApe/gk-browser-object-links

Object links and minor refactoring
Merge pull request #712 from realm/tg-core-local-build

Don't download the core when a local build is present
Copy `_notificationHandlers ` in case it was mutated while being enumerated
Merge pull request #804 from dismory/master

Copy `_notificationHandlers ` in case it is mutated while being enumerated
Update changelog for #804
Handle object cycles in -description by limiting the recursion depth