0.3.0

• Add Adresposities. Add endpoints that exposes the Adresposities linked to a certain Huisnummer or Subadres. (#26) [@TalissaJoly]
• Add Landen (countries). Add endpoints to get a list of Landen or more information about a single Land. (#30, #31) [@TalissaJoly]
• Return HTTP 404 errors for certain unexisting resources. (#25) [@TalissaJoly]
• Limit the number of results that can be returned in a list. There was some partial handling for this, but only when the user did not send any range headers. This behavious was deemed potentially hazardous and changed. Now, only a maximum of 5.000 records will be returned and range slicing works correctly. (#16) [@TalissaJoly]