remove redundant framework developer path
QCKDSL: no 'qck_' prefix unless shorthand disabled

Users may now use Quick in Objective-C using the following syntax
(notice the lack of the `qck_` prefix):

```objc
QuickSpecBegin(DolphinSpec)

describe(@"a dolphin", ^{
  it(@"is the smartest animal in the ocean", ^{
    // ...
  });
});

QuickSpecEnd
```

To namespace the `describe`, `it`, and other macros with the `qck_`
prefix, users must `#define QUICK_DISABLE_SHORT_SYNTAX 1` before
importing the Quick header.

Addresses issue #66.
README: Use shorthand Objective-C syntax

- Use shorthand Objective-C syntax
- Add note on disabling Objective-C shorthand
- Update table of contents
Merge pull request #145 from modocache/66-objc-shorthand

QCKDSL: no 'qck_' prefix unless shorthand disabled
Remove Examples directory

Examples were poorly maintained and not really used anyway. Remove them
altogether.
README: update logo
README: remove vestigial qck_ prefix

`qck_` prefix was mostly removed in a7332628, this finishes the job.
.gitmodues: Update Nimble clone URL

URL was pointing to clone URL prior to organization rename from
"quick-bdd" to "Quick".
.gitmodules: Update Nimble
README: ReactiveCocoa uses Quick

Currently 38 specs written in Objective-C! See:
https://github.com/ReactiveCocoa/ReactiveCocoa/search?q=QuickSpecBegin
README: GitHub uses Quick

Currently 3 specs written in Objective-C. See:
https://github.com/github/Archimedes/search?q=QuickSpecBegin
Fixes #39.
Updated based on feedback from @modocache.
Merge pull request #155 from AshFurrow/viewcontroller-testing

Improves testing UIViewController examples
How'd you get reset, VALID_ARCHS?
Merge pull request #158 from github/upstream-valid-archs

Only allow x86_64 for OS X builds
FunctionalTests: Add FailureTests

Addresses #127 by adding infrastructure to run a test suite composed of
QuickSpec instances, then makes assertions on the results of those runs.

- Expose internal XCTest classes and methods in order to allow for
  multiple XCTestSuite instances to be run at once.
- Add function to make it easy to run a XCTestSuite with a given spec
  instance in QCKSpecRunner.
- Running examples multiple times causes the afterSuite logic to
  misfire. Add a flag to World in order to prevent afterSuite from
  running in such a case.
- Add a bridging header to QuickTests in order to expose QCKSpecRunner
  to tests written in Swift.
- Add tests that check that failures are correctly reported.
FunctionalTests: Add BeforeEachTests

More work on #127: add functional tests for beforeEach.
FunctionalTests: Add AfterEachTests

More work on #127: add functional tests for afterEach.
FunctionalTests: Add PendingTests

More work on #127: add functional tests for pending.