tide 0.1.0

Tide class fetches returns Canadian tide prediction data from waterlevels.gc.ca Accepts options for tide zone, tide region, tide station, date and timezone. Defaults to 7 days of tide prediction data (starting from today) for Sydney, Nova Scotia in Atlantic time. Outputs a semi-colon delimited array of tides (date, time, height in meters) with Tide.new.to_csv or a formatted html table with Tide.new.to_html.