Merge pull request #14 from rhilfers/deploy_fix

revert dplv2 changes to deployment section of travis.yml

Merge pull request #13 from rhilfers/build_fix

Build Updates

fix typo in setup.py that was causing an error in pip 21.0+

Fixed common tags leaking state between spans (#9)

* fix bug where state is leaked between spans when using common tags feature

* fix linting issue

opentracing updates: ver 2.3.0 (#8)

* opentracing updates: ver 2.3.0 w/ContextVarsScopeManager support. Global Tracer support. protospan boolean tag value bugfix

* fix linting error

Update License Copyright - Add custom propagation info to ReadMe (#6)

* add tracer init to readme

* added build and release features

* fix makefile typo

* can enable shared spans if desired

* add ability to provide custom propagation headers if needed. default to Span-ID, Trace-Id, Parent-ID

* fix lint issue

* fix copywrite in license and add re-org readme

* fix typo