HOTFIX RELEASE Because of Tokyo's Summer Olympic games, some July/August holidays were changed in Japan.

Bugfixes

• Updated Japan calendar because of the Olympics, thx @lxlgarnett. (#662)
• Fixed Japan "Sports Day" label depending on the year.

Documentation

• The Workalendar project has been moved from Peopledoc's organization to its own (#651, #653, thx to @ewjoachim).