[groonga/f17] (6 commits) ...Merge branch 'master' into f17

[Daiki Ueno]

Summary of changes:

  04e2c8d... Update to 2.0.0-1. (*)
  65533e0... Update to 2.0.1-1. (*)
  85169dc... Update to 2.0.2-1. (*)
  b7c6fb9... Update to 2.0.3-1. (*)
  a79db90... Update to 2.0.4-1. (*)
  09ccb4c... Merge branch 'master' into f17

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