add information on Ruby 2.0 support
Added Gentaro Watanabe
Merge pull request #42 from gwtnb/gw

Added Gentaro Watanabe
fix typo in tutorial
add new manual
fix toc missing link
translate subtitle of documentation into Japanese
translate subtitle of aboutus, howtocontribute, misc into Japanese
transrate TOC
Merge branch 'develop' of github.com:jubatus/website into develop
bump version
Merge branch 'release/0.4.3'
Merge branch 'release/0.4.3' into develop
fix path
Merge branch 'master' into develop
fix typo in stat tutorial
Merge branch 'master' into develop
fix dead link in tutorial
Merge branch 'master' into develop
add Takashi Abe