update to 1.5.2
    
    - get_supported_imes(self) and def get_current_imes(self) should
      return copies not the lists directly
    - Resolves: rhbz#1372660
    - Update emojione.json, version from 2016-07-16
    - Pull translations from Zanata: Fixes for fr and pl. New: uk
    - Changes in itb_emoji.py necessary because of the update of
      the CLDR emoji annotations.
    - Update emoji annotations from CLDR (be, bs, cy, eu, gl, zu
      are new, the others updated).
    - Shortcut keys which look up related candidates should enable
      the candidate list
    - Show ⏳ HOURGLASS WITH FLOWING SAND in the auxiliary text when
      the lookup table is being updated
    - Fix bug when committing the preëdit with Space when no
      candidates are available
    - Improve the behaviour of the “Tab” key
    - Improve the behaviour of the “Escape” key.
    - Make mouse clicks in the candidate list behave differently
      depending on the mouse button
    - Add hu-rovas-post.mim to hu_HU.conf