implement recursive collection downloading

add minimal working download

implement new-collection toolbar button

remove deleted resources from the browser list

implement resource deletion

update upload progress bar in update_upload_labels()

don't show number of uploading files when there is only 1 file

implement upload via file dialog

don't show progress percent when the file size is 0

don't crash when the upload is in progress and the window is closed

(0) -10 +10 tip

mercurial