Merge pull request airbrake#86 from airbrake/release-2-1-0

Release v2.1.0

Remove hardcoded test version use

Merge pull request airbrake#32 from airbrake/samstav/bump-version

bump to 1.3.3 for notify fix

bump to version 1.3.2 for traceback duck-typing

Merge pull request airbrake#27 from argos83/tech/support_non_json_ser…

…ializable_objects

Don't fail when 'extra' in log records contain non JSON serializable objects

Merge pull request airbrake#19 from lusitania/py3py2

Py3 compatibility as proposed in issue airbrake#17

Merge pull request airbrake#11 from samstav/master

fix setup, bump version

Merge pull request airbrake#10 from samstav/eventlet

fix bug when running with eventlet

Merge pull request airbrake#9 from samstav/v1.1.1

bump version to 1.1.1