Log Message:
Update to 1.4.1

Changelog:
Version 1.4.1 (2017-01-08)
  - Lower the required gspell version to 1.0
  - Work around a binding problem in the gtk+ 3.18 vapi of vala 0.30

Version 1.4 (2017-01-06)
  - Images in quoted tweets now look more like they actually belong to
    the quoted tweet instead of the quoting tweet.
  - Allow deleting tweets from the tweet info page and not just from
    timelines.
  - Fix the user completion not showing all possible results
  - Focus the already opened window for an account if the account gets
    selected in the accounts popover
  - Avoid window resizing when typing in the Direct Message text box
  - Add 'q' accelerator to tweet rows for quoting
  - Add spellchecking. This add a dependency to gspell
  - Increase gtk+ dependency to 3.18 to get rid of some workarounds.
  - Increase avatar size in profiles and slightly overlap them over the
    banner. Also, always show the full banner.
  - Fix completion popup positioning under Wayland
  - Add experimental meson build files
  - Fix some videos not playing correctly
  - Add a minimal video progress indicator to the video dialog
  - Fix the retweet/favorite count updating in the tweet info page