entangle: 0.5.4-1~getdeb1

  * New upstream version
    * Ensure thumbnail directory exists when saving thumbnails
    * Fix memory leak generating thumbnails from raw images
    * Add an appdata XML file for GNOME software center
    * Create a dedicated camera actions menu
    * Fix include of gexiv2 header files
    * Fix image selection for onion skinning in preview mode
    * Display selected image when cancelling preview
    * Fix empty tooltips on capture/preview buttons
    * Fix scaling for preview image in onion skinning mode
    * Increase emphasis of top image in onion skinning mode
    * Improve granularity of manual focus and add extra
      '<' and '>' key accelerators for coarse focus
    * Fix leak of image exiting preview mode
    * Make progress toolbar button permanently visible