0.2.0

• get_dataset() and get_resource() gain a new parameter include_context
  which allows adding context such as the resource ID and modified / created
  dates to returned data (#24).
• The magrittr pipe (%>%) is now exported (#29).
• get_dataset() will now suggest multiple dataset names, when the dataset
  you've asked for doesn't exist (i.e. there's a typo) and there are multiple
  likely candidates (#28).
• Two new functions list_datasets() and list_resources() allow browsing
  available datasets and resources (#10).
• The new function get_latest_resource() retrieves the most recent resource from a dataset with additional context such as the resource ID and modified / created dates (#36).