Merge branch 'release/v0.2' into develop

* release/v0.2:
  Bump version number on missed user agent string
fixed escape character
Don't transform artist lifespan dates into \DateTime

Some artists begin and end date are limited to only a year which breaks the constructor
Merge branch 'refs/heads/develop'

* refs/heads/develop:
  Don't transform artist lifespan dates into \DateTime
  fixed escape character