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.
Don't sync table views while iterating over them

We don't actually want to be doing this at all (adding or deleting items while
fast enumerating isn't supported), and it made looping over a query and
mutating items take quadratic time.

Speeds up fast enumerating and mutating 20k items on my 4S from 22 seconds to 5
seconds.

Updates #796.
Make the array tableview validation functions better named
Merge pull request #797 from realm/tg-enumerate-and-mutate

Don't sync table views while iterating over them
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
Add more and better tests for link queries
Implement BETWEEN for link queries
Implement the IN operator for link queries
Add a helper for checking predicate preconditions