Changes in version 0.0.0.9000                      

  - Initial development release.
  - Added generic Census API access with census_get().
  - Added dataset discovery helpers for datasets, variables, groups,
    geographies, and examples.
  - Added convenience wrappers for ACS, decennial census, population
    estimates, county business patterns, and time-series datasets.
  - Added flexible geography inputs, including state names,
    abbreviations, and FIPS codes, with county normalization helpers.
  - Added optional spatial output through tinytiger.
  - Added testthat and vcr test coverage for metadata, tabular queries,
    input normalization, and geometry workflows.