[libgweather] (19 commits) ...Merge branch 'wip/hadess/serialisation-fix' into 'master'

[Bastien Nocera <hadess src gnome org>]

Summary of changes:

  96d1ac2... GWeatherLocation: Add private function to reset the world (*)
  b2a1468... GWeatherLocation: Fix double-free with "nearest stations" (*)
  afa1f52... GWeatherTimezone: Fix timezone_cache ref count (*)
  0578ab3... GWeatherLocation: Don't use a city as a weather station (*)
  44ad9b0... GWeatherLocation: Fix nearest weather station distance calc (*)
  a279b64... GWeatherLocation: Make "find nearest city" return a city (*)
  4baab2a... tests: Reset world between tests (*)
  fb83e03... tests: Add test for serialisation of Amiens (*)
  ff7ec97... GWeatherLocation: Fix distance for loc1 == loc2 (*)
  6695b02... Locations: Remove Donakonda (*)
  5689ace... Locations: Remove Warangal (*)
  6f8b21b... Locations: Add Parana airport (*)
  9947035... tests: Fix metar code test (*)
  30869ac... tests: Print metar info when successful (*)
  519cf4e... Locations: Add airport for Ciudad Juárez (*)
  4816212... GWeatherLocation: Cap the distance to attach an airport to  (*)
  2931767... tests: Switch "no METAR code" serialisation to Izhevsk (*)
  2bb1524... GWeatherLocation: Fix crash when serialising detached citie (*)
  6127501... Merge branch 'wip/hadess/serialisation-fix' into 'master'

(*) This commit already existed in another branch; no separate mail sent