Replaced javascript uploader for for element component
Merge branch 'develop' into forge-3091
New file uploader now also used for class editing, styles updated for tao3 guidelines
improved the style for buttons
Merge branch 'forge-3091' of git://github.com/oat-sa/tao-core into forge-3091
'Upload' and 'reset' buttons are  hiding if form element  auto uploading option is  turned on
Merge branch 'forge-3091' of git://github.com/oat-sa/tao-core into forge-3091
Merge branch 'develop' into forge-3091
Merge branch 'forge-3091' into develop