print atos info message in CDRSymbolicator only if all addresses failed symbolication
stop leaking exception reason in CDRSpecFailure
moved Mocks & Stubs section after Matchers
Symbolicate exception call stacks

Example exception output with symbolication:

EXCEPTION CDRSpec some failing test
*** -[__NSArrayI objectAtIndex:]: index 4 beyond bounds for empty array
Call stack:
  ...
  *InvalidArrayAccess.m:13
  *CDRSpecSpec.mm:51
  ...
  *main.m:4
  ...
add CEDAR_SKIP_EXCEPTION_SYMBOLICATION
catch potential errors when running atos
provide better error messaging when symbolication fails
include CDRSpecFailure and CDRSymbolicator specs in OCUnit target
Don't force OSX version for OCUnitAppLogicTests
Make exception symbolication an opt-in feature
Merge pull request #64 from cppforlife/master

Exception symbolication
fixed indentation in readme
add travis build
Hide 'BKSetAccelerometerClientEventsEnabled...' message from OCUnitApp application tests in iOS 6.x
Enable running against iOS SDK 6.1 in CI
Disable running against iOS SDK 5.1 in CI
Merge pull request #68 from xoebus/travis-ios-61

Enable running against iOS SDK 6.1 in CI
Spying on nil now throws an obvious exception
Implement -[CedarApplicationDelegate window]

- It throws an exception informing the user that s?he is not actually asking
  h(er|is) own app's delegate for the window.
- Stubbing is suggested to reveal intent in tests more clearly.
Updated README sections about matchers and ARC