zippeR 0.1.1

• Updates to README.md and NEWS.md to reflect the fact that the package is now on CRAN
• Resolve R CMD check issue where examples in zi_crosswalk and zi_load_crosswalk fail on CI because a HUD key is not available to them
• Fail informatively if tigris is not working due to U.S. Census Bureau servers being unavailable. At this time TigerWeb is not used as a backup due to the limited availability of ZCTA data

zippeR 0.1.0

• Initial CRAN submission version that contains functionality for working with UDS and HUD ZIP Code crosswalk files as well as Census Bureau ZCTA geometries and demographic data