USgas 0.1.1

• Fixing CRAN errors - removing the digits argument from the format function
• Updating the data - monthly data up-to-date to Feb 21

USgas 0.1.0

• Added the us_residential dataset, describing the US monthly natural gas residential consumption by state and aggregate level
• Added the us_total dataset, describing the US annual natural gas consumption by state and aggregate level
• Added the us_monthly dataset, describing the overall US monthly natural gas consumption
• Added a NEWS.md file to track changes to the package.