Reformats few stuffs.
Promotes Cyrille in the contributor list (due to his latest and major contributions).
Updates the release note content.
Increments the version number.
Reformats code to avoid stylecop error.
Makes the Equals() method of the IFluentAssertion<T> throw a FluentAssertionException in any cases, in order to avoid confusion with the other assertion methods.
Changes the release note to mention the new behaviour of the Equals() method.
Continues the migration of the exception error messages.
Migrates the ContainsExactly tests to the new error message format (break tests here, but needed to pull dupdob branch).
Migrates the ContainsExactly tests and code to the new error message format.

Merge branch 'master' of https://github.com/dupdob/NFluent into DupdobIntegration

Conflicts:
	NFluent/Assertions/EnumerableFluentSyntaxExtension.cs
	NFluent/Assertions/NumberFluentAssertion.cs
Added string.IsEmpty and string.IsNotEmpty
Merge remote-tracking branch 'upstream/master'
Added an empty line in FluentMessages to improve readability