bumping version 0.11.0 => 0.11.1

[docs] add wrapt in the docs build requirements

Merge pull request DataDog#412 from palazzem/update-docs

[docs] update docs syntax

Merge pull request DataDog#374 from DataDog/benjamin/propagate-no-pri…

…ority

Make HTTPPropagator safe

Merge pull request DataDog#346 from palazzem/django-docs

[django] update docs: adding the middleware is not required

bumping version 0.9.0 => 0.9.1

Merge pull request DataDog#302 from benjamin/flask-stacktrace

Attach stack trace to Flask errors

bumping version 0.8.4 => 0.8.5

bumping version 0.8.3 => 0.8.4

bumping version 0.8.2 => 0.8.3