Moved all tests verifying failure messages to ShoudlyMessage class
Issue #51 Remove dependency on Rhino.Mocks
Refactoring ShouldlyMessageTests
Issue #46 - Deprecate ShouldBeCloseTo

ShouldBeCloseTo has been deprecated because it's poorly named. The
  spunkier (and terse) "ShouldContainWithoutWhitespace" supercedes
  our old ShouldBeCloseTo friend.
ChuckedAWobbly should be serializable

I need my tests to be run in a different AppDomain for Asp.Net testing, so I need a test exception to be serializable.
Fixing build
Trying to fix build again
Fixing next build error
Add failing tests when decimals outside tolerance
Add ShouldNotBe overload for decimal with tolerance
Add ShouldNotBe overload for decimal enumerable with tolerance