docs: Deprecation message

fix: Panic when cause is nil while calling client.CaptureError (#261)

feat: Add level/severity support (#258)

Fix iteration bug in GetOrNewStackTrace() (#257)

Return empty string if errWrappedWithExtra.err is nil (#254)

Add setter to change max packets into queue buffer (#252)

Fix compatability with Go 1.12 (#248)

set default timeout for transport http client (#250)

feat: Support errors with just extra, no cause (#240)

doc: Fixed CapturePanicAndWait inline documentation

ref: Remove reliance on pkg/errors (#228)

ref: Fix tooling-based issues, adds debugLogger and update TravisCI

fix

Minor updates to readme, including minimum Go version

Remove build tag