V0.31.0 rebased on master#4

Merged

carlosalberto merged 20 commits intov0.31.0-originalfrom

v0.31.0-rebased-on-master

Dec 17, 2017

Commits on Oct 2, 2017

Code cleanup (#199)

mcumings
authored and
pavolloffay
committed

Commits on Nov 7, 2017

Add support for multi reference and expose references context and type from MockSpan. (#213)

hypnoce
authored and
yurishkuro
committed

Commits on Nov 30, 2017

Publish test artifact for Globaltracer testutil (#209)

sjoerdtalsma
authored and
yurishkuro
committed

Commits on Dec 1, 2017

Fix MockTracer.ChildOf not fail if there is a null argument passed (#226)

Ivan Kirichenko
authored and
pavolloffay
committed

Commits on Dec 13, 2017

Use correct reference in Javadoc (#230)

wsargent
authored and
yurishkuro
committed

Commits on Dec 14, 2017

MockTracer use text map propag in the default constructor (#179)
pavolloffay
authored

Commits on Dec 15, 2017