Add gem, guard-rsec, factory-girl, etc...
change guard setting.
Add spec 'user_spec'
change guard-spring.
Change Wiki name validation.
modified Gemfile, moving group of 'faker'
moving settinglogic file.
Redirect to root page when not found wiki.
Redirect to wiki hoge when not found page.
fix bug: wiki name validation.
modified sample file for application.yml
Modified travis.yml
remove spring for Gemfile (using system spring because it's faster)
Add gem, 'database_cleaner'
remove wiki data when discovered gabage
modified Gemfile, add option require => false
add specs (wiki_informations)
Add specs for wiki.
add specs wiki access and some falied spec.
Merge branch 'feature/add_spec' into develop