[ANN] rasn1 0.6.0 released

rasn1 0.6.0 has been released.

* home: <https://github.com/sdaubert/rasn1>
* bugs: <https://github.com/sdaubert/rasn1/issues>
* doc: <https://github.com/sdaubert/rasn1/wiki>

RASN1 is a pure ruby ASN.1 library. RASN1 helps to create ASN.1 parsers
and encoders.

Changes:

### 0.6.0 / 2017-12-16

* Break Types API: remove mandatory name argument. A name may always be
given, but with :name option,
* Add RASN1.parse method to parse a DER/BER string without model.