Improved behavior of set/andSet expectation methods

Behavior implementation based on docs
Basic installation instructions on the README
Add method_existe() to TestListener to avoid mask test errors
Merge pull request #392 from entering/master

Add method_existe() to TestListener to avoid mask test errors
Simple edits
Merge pull request #382 from augusteiner/master

Improved behavior of set/andSet expectation methods
Merge pull request #394 from farinspace/patch-1

Simple edits
Interface mockups
shouldNotHaveReceived should return void
Add shouldIgnoreMissing method to Stub
Add fleshed out spy interfaces
Add fleshed out mock interfaces
Make an interface as it should be
Add test double API top level API mock up
Match positive call expectations signatures
Move StubMethod to own file
Flesh out StubMethod and associated interfaces
Specify argument for toReturn
Spiking out some tests