Merge pull request #6 from Kjven/kevin

Abstracted scraper, created TideGraphView class.
Merge pull request #7 from Kjven/master

Updating Branch
Scraper:TideInfo:extractTideHeight now returns an array of GraphViewData arrays. Each element represents the dataset for a day.
Implemented extractStationName
Extracting Dates for the Data Sets
Created tideDataSet class to store the set of tide heights for a particular date and station
Interfaced Scraper with tideDataSet. ExtractHeight now returns an ArrayList of tideDataSet, each with the station name, date, and data for a particular date
Merge pull request #8 from Kjven/gavin

Gavin - Implemented TideDataSet Class