Rename ImageAlbum to Album and update javadoc

javadoc/NTNU/IDATT1002/App.html

javadoc/NTNU/IDATT1002/ApplicationState.html

javadoc/NTNU/IDATT1002/controllers/CreateAlbum.html

javadoc/NTNU/IDATT1002/controllers/DataExchange.html

javadoc/NTNU/IDATT1002/controllers/Explore.html

javadoc/NTNU/IDATT1002/controllers/ExploreAlbums.html

javadoc/NTNU/IDATT1002/controllers/Login.html

javadoc/NTNU/IDATT1002/controllers/Main.html

javadoc/NTNU/IDATT1002/controllers/Map.html

javadoc/NTNU/IDATT1002/controllers/Search.html

javadoc/NTNU/IDATT1002/controllers/SignUp.html

javadoc/NTNU/IDATT1002/controllers/Upload.html

javadoc/NTNU/IDATT1002/controllers/UploadedMultiple.html

javadoc/NTNU/IDATT1002/controllers/UploadedSingle.html

javadoc/NTNU/IDATT1002/controllers/ViewAlbum.html

javadoc/NTNU/IDATT1002/controllers/ViewPicture.html

javadoc/NTNU/IDATT1002/controllers/package-summary.html

javadoc/NTNU/IDATT1002/controllers/package-tree.html

javadoc/NTNU/IDATT1002/database/EntityManagerConfig.html

javadoc/NTNU/IDATT1002/database/LoadDatabase.html