v0.4.0

• [BC Break] Pass Headers object to restClient
• Add loads of documentation
• Use source as implicit label in fields and input components
• Add <RichTextField> and <RichTextInput> components (powered by quill)
• Add <UrlField> component
• Add Form Validation in <Edit> and <Create> views (powered by redux-form)
• Add material-ui theme support in the <Admin> component (by fnberta)
• Add option to show date with time (by fnberta)
• Add UUID support (by bjet007)
• Add deep field selection
• Add unit tests
• Fix form display issue when single or no fields
• Fix and speedup filters
• Fix create form
• Fix filter value reset when filter is removed