update to 1.9.18
    
    - validate ibus-table.appdata.xml in %%check
    - Update translations from zanata (pt_BR updated, es new)
    - Don't query user database if user define phrase and
      dynamic adjust are disabled (thanks to heiher)
    - Enable hash map based cache for user database enabled
      (thanks to heiher)
    - Import hash map based cache for table database (thanks to
      heiher)
    - Install appstream metadata to /usr/share/metainfo/ (thanks
      to jbicha)
    - Fix some appdata validation issues (thanks to jbicha)
    - Fix bug in Unihan_Variants.txt, 著 U+8457 is both
      simplified *and* traditional Chinese (thanks to heiher)