* Added read_waterdata_latest_daily to access latest daily USGS water data. * Added read_waterdata_continuous to access continuous USGS water data. * Added state_name and hydrologic_unit_code to read_waterdata_ts_meta * Removed daily_id from read_waterdata_daily output since it is not stable over time. Moved other "id" columns to end of returned data frames. * Changed examples for stateCd, countyCd, and parameterCdFile. Users are encouraged to migrate to the "read_waterdata_metadata" functions. * Added no_paging argument. This will make the request more efficient, but is not recommended because it will silently cut off data after 50,000 rows. * Removed max_results argument. Was confusing and redundant with the combination of no_paging and limit. * Increase the flexibility of read_waterdata_metadata to match other OGC functions. * NLDI to use agency code prefixes and should no longer be stripping the "USGS-" off the site ides. * Add deprecate message to readNWISuse function as data services have been retired.