Merge pull request DataDog#293 from DataDog/v0.6.0

v0.6.0

v0.5.6 (DataDog#246)

v0.5.5 (DataDog#232)

v0.5.4 (DataDog#226)

v0.5.3 (DataDog#215)

v0.5.2 (DataDog#204)

v0.5.1 (DataDog#200)

remove mentions of beta as the module is now stable (DataDog#195)

Merge pull request DataDog#187 from DataDog/v0.4.0

v0.4.0

v0.3.2 (DataDog#186)