docs/guide-ja/intro-upgrade-from-v1.md minor fix [ci skip]
docs/guide-ja/intro-*, docs/guide-ja/start-* minor changes [ci skip]
docs/guide-ja/* changes for "render" and "rendering" [ci skip]
Merge branch 'master' into docs-guide-ja-20141102
Merge pull request #5867 from softark/docs-guide-ja-20141102

Docs guide ja 20141102 [ci skip]