Use xcrun instead of magic strings
Use xcrun at end-user' Rakefile
Use an Xcode text placeholder for the SUT variable name in the Cedar Spec file template
Kill the simulator after completing rake tasks that use it.

- This ensures that no environment state (e.g. Reporter Class) sticks around after rake is done
Cedar.h imports SpecHelper to make it behave more as expected
Setup the Podspec to explicitly link against libc++.a
Merge pull request #228 from pivotal-brian-croom/add-libc++-to-podspec

Setup the Podspec to explicitly link against libc++
Merge pull request #224 from pivotal-brian-croom/close-sim-after-rake

Kill the simulator after completing rake tasks that use it.
Merge pull request #223 from pivotal-brian-croom/placeholder-text-in-spec-file-template

Use an Xcode text placeholder for the SUT variable name in the Cedar Spec file template
Merge pull request #220 from AlexDenisov/xcrun

Use xcrun instead of magic strings
Merge pull request #227 from pivotal-brian-croom/import-spechelper-from-cedar-h

Cedar.h imports SpecHelper to make it behave more as expected
Refactor test boot methods

- Common code consolidated into CDROTestRunner and CDROTestIPhoneRunner
- CDROTestIPhoneRunner subclasses CDROTestRunner
Update podspec to not exclude CDROTestRunner on iOS