Add frontend for upload
Merge branch 'dev' into feature_upload
created File and Fileuploadpage
Merge branch 'dev' into feature_upload
Use Spring on this branch, too
Whitespace fixes
Add references between user and file
Rename File.java to UserFile.java to avoid conflict with java class
Fix Refactoring error when renaming File to UserFile
Fix relational database layout
Upload feature complete
Merge branch 'feature_upload' into dev