• #646 update general styles
• #695 support exporting everything in DLT file
• #687 also: export sections from dlt file
• #695 support exporting everything in text files
  empty lines are no longer discarded so we can reproduce the input file
• #695 general support for saving text based files
• #573 support search based on text selection
• remove source's name column from views
• fix colors for DLT row render