Made changes to Sponsorships, and SampleDataInitializer.
Modified SampleDataInitializer, and added Sponsor methods to the ModelFacade.
Merge remote-tracking branch 'origin/master' into Sponsorship
Merge remote-tracking branch 'origin/master' into Sponsorship

* origin/master:
  Use form action of "save-greyhound" or "save-sponsor" to post to server.
  Added adminStyles.css to admin jsp's.
  Updated index.html to use styles.css.
  Removed unused jsp's.
Fixed issue with manageGreyhounds.jsp and updated GenerateSampleDataTest.java
Added a getName method to sponsorship for testing purposes, will probably amend this later on.