Merge pull request #7 from ZenCocoon/components

Components
Merge branch 'upstream'
Improve doc
Merge pull request #8 from ZenCocoon/doc

Improve doc
Add navigations and stackable navigations
Merge branch 'dev'
Merge pull request #9 from ZenCocoon/navigation

Add navigations and stackable navigations
Merge branch 'upstream'