owidapi 0.1.1

• Encapsulated request logic in internal perform_request() function.
• Updated variable parsing & introduced graceful error handling in owid_get_catalog()

owidapi 0.1.0

• Initial release with owid_get(), owid_get_metadata(), owid_get_catalog(), and owid_search().
• Includes experimental helpers for shiny apps owid_output() and owid_server().