[tx-robot] updated from transifex
json encode list of files
remove debug output
create a meanigful file name if files are from the root folder
Merge pull request #2163 from owncloud/fix_file_download

json encode list of files
Merge remote-tracking branch 'refs/remotes/upstream/master'
Rewritten socket read function for improved handling of heavy file transfer and/or slow connections
Log entry when encountering invalid gzipped file data from server
Enhanced connect function to properly reconnect to server after connection problems