Added elapsed(TimeUnit), used to return specific duration of time rather than the default nanoseconds
Imported TimeUnit and added static import for TimeUnit#NANOSECONDS
Merge pull request #1 from atomicint/patch-1

Added elapsed(TimeUnit), used to return specific duration of time rather...
Merge pull request #2 from atomicint/master

Ensure single method interfaces are marked as a functional interface
Predicate removed (already in Java 8), events to take shape!
Stopwatch no longer has print features
Events are taking shape
Merge pull request #1 from Jire/master

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