Hiki::Farm::Dispatcher#call: Return 404 for nonexistent pages
Rack HikiFarm: support file upload with attach.rb plugin
set default @attach_cgi_name for Rack HikiFarm
Merge pull request #59 from ngoto/mydevel

Rack版HikiFarmのattach.rbのサポート。存在しないWikiに404を返す。
bump version to 2.0.0.pre1
bundle update
Merge branch 'master' into rubima
upgrade ruby 2.1.3