CAS-1425: aligned view names to match the jsp filename

Some view names in default_views.properties have been updated to match the file names of the jsp's. The respective view names in the login-webflow.xml have been updated as well. This pull fixes https://github.com/Jasig/cas/issues/490
I wouldn't call it hard coded, but a realistic default. There is a setter that allows for the path of the view to be changed.