add TLS handshake timeout

Merge pull request #13 from objenious/go/std_unwrap_error

use standard error unwrap for cause

Merge pull request #12 from objenious/change/lib

use objenious/errors

Merge pull request #11 from objenious/io/timeout

add io timeout error

Merge pull request #8 from reagere/go1.13

go1.13

add delayed errors (#7)

* Adding DelayedError

* minor fix

* langage optimization

go-kit compatibility for HTTPStatusCode (#6)