Update Swift code for Xcode 6 beta 5

Mostly mundane tweaks for changes to Swift. The two big ones are that swift's
name mangling is now just "module.classname" and that all properties have to be
explicitly declared as `dynamic`.

Closes #733.
Update Swift examples
Build with Xcode6 beta 5
Merge pull request #734 from realm/tg-beta5

Update Swift code for Xcode 6 beta 5
Sort the project files
Add a test for memory leaks when creating a lot of queries
Fix the memory leak when creating queries
Add an explanatory comment
Merge pull request #743 from realm/tg-sort

Sort the project files
Merge pull request #742 from realm/tg-query-memory-leak

Fix a memory leak when querying tables
more tests for deleting array children
add support for querying nil objects
changelog
Merge pull request #744 from realm/al-delete-test

More tests for deleting array children
Merge pull request #745 from realm/al-nil-query

Support nil object queries
Removing commented out and unused code
Improve error message for invalid literals
Merge pull request #753 from realm/al-message

Improve error message for invalid literals
Verify that adding objects to standalone arrays works from Swift
Make the documented style for defining RLMArray properties on Swift objects work

Initialize the backing array for standalone arrays created with
initWithObjectClassName:, and switch the subclasses to using
initViewWithObjectClassName to avoid having them create a pointless
backing array.

Closes #746.