Changes by Version

v0.31.0 (2018-01-12)

BaseSpan and ActiveSpan are simplified into a single Span class.
Scope replaces ActiveSpan, removing Continuations.
ScopeManager replaces ActiveSpanSource.
Tracer.activeSpan() returns the current value of Tracer.scopeManager().active().span() as a convenience.
startManual() deprecated in favor of start()
new examples directory