0.02 2017-07-25
 - bubble up exceptions from implementations correctly
 - make caller created with pawsx-fakeimplementation-instance first class Paws callers. 
   Before, you would have to pass through a first-class Paws caller (like 
   Paws::Net::MultiplexCaller), that wasn't verifying that what it multiplexes to
   is itself a valid Paws caller.

0.01 2017-07-24
 - First version released to an unsuspecting world
