Fixed bug in getting and setting items on UploadField where data may be blank
Updated UploadFieldTest with more working test cases and improved testing utilities (Separate UploadFieldTestForm, helper functions for mocking form actions, and better validation error checking).
Fixed issues with mixed tabs / spaces in UploadFieldTest.yml
Updated test case
Fixed issue with readonly and disabled fields displaying upload controls
Fixed animation of image edit form for disabled and readonly fields
Updated display of readonly and disabled field view
Updated front end and additional javascript / css testing and fixing
Enabled upload for script-disabled browsers, including multiple-file upload
Fixed saveInto when relationAutoSetting is disabled