Merge branch 'javadoc' into 'dev'

src/main/java/NTNU/IDATT1002/controllers/CreateAlbum.java

src/main/java/NTNU/IDATT1002/controllers/DataExchange.java

src/main/java/NTNU/IDATT1002/controllers/Explore.java

src/main/java/NTNU/IDATT1002/controllers/ExploreAlbums.java

...main/java/NTNU/IDATT1002/controllers/ImageMapFactory.java

src/main/java/NTNU/IDATT1002/controllers/Login.java

src/main/java/NTNU/IDATT1002/controllers/Main.java

src/main/java/NTNU/IDATT1002/controllers/Map.java

...ain/java/NTNU/IDATT1002/controllers/NavBarController.java

...ain/java/NTNU/IDATT1002/controllers/PaginatedContent.java

src/main/java/NTNU/IDATT1002/controllers/Search.java

src/main/java/NTNU/IDATT1002/controllers/SignUp.java

src/main/java/NTNU/IDATT1002/controllers/Upload.java

src/main/java/NTNU/IDATT1002/controllers/UploadImages.java

src/main/java/NTNU/IDATT1002/controllers/ViewAlbum.java

src/main/java/NTNU/IDATT1002/controllers/ViewImage.java