refactor(aio): add the docs, remove the unneeded dependencies, remove a config folder, fix a travis config

docs/templates/article.jade

@@ -0,0 +1,21 @@
+
+extends layout
+
+block title
+  | ng2-admin documentation - #{page.title]
+
+block content
+  section.content.wrap.documentationContent
+    div.nav-docs
+      each group in groupedArticles
+        div.nav-docs.section
+          h5=group.groupName
+          ul
+            each article in group.items
+              li
+                a(href=article.url)(class= locals.page === article ? 'active': '')= article.title
+    div.inner-content
+      h1=locals.page.title
+      div.subHeader
+      != typogr(page.html).typogrify()
+

docs/templates/index.jade

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+
+extends layout
+
+block title
+  | Admin HTML template based on Angular 2, Bootstrap 4 and Webpack
+
+block content
+  div.hero
+    div.hero-content
+      div.wrap
+        div.text
+          strong ng2-#[span.white-text admin]
+        div.minitext Angular 2 admin panel front-end framework
+        div.buttons-unit
+          a.button(href=installationArticleUrl) Installation guidelines
+          a.button(href=firstArticleUrl) Documentation
+        div.admin-screenshots
+          div.admin-screenshot
+            div.browser-mockup
+              a.demo-link(href='http://akveo.com/ng2-admin/',target='_blank')
+                img(src=contents.images['sky-preview.png'].url)
+                span.demo-link-label Demo
+  div.index-block
+    div.wrap
+      h1.centered Why ng2-admin?
+      div.why-items
+        div.why-item
+          img(src=contents.images['why-structure.svg'].url)
+          h4 Awesome structure
+          p Component-based structure is the best choice for large Angular 2 applications.
+        div.why-item
+          img(src=contents.images['why-design.svg'].url)
+          h4 Neat design
+          p We have put a lot of effort and carefully selected each color and font for this template!
+        div.why-item
+          img(src=contents.images['why-practices.svg'].url)
+          h4 Ease of customization
+          p Check out #[a(href='/ng2-admin/articles/011-changing-color-scheme') our article], where we describe how you can create a different look in just 2 minutes!
+  div.index-block
+    div.wrap
+      h1.centered Is it free?
+      p Yes, ng2-admin is completely free and MIT licensed. That means you can do with it whatever you want.
+
+  div.index-block
+    div.wrap
+      h1.centered How can I support you guys?
+      p Here's what you can do:
+      ul
+        li Star #[a(href='https://github.com/akveo/ng2-admin',target='_blank') our GitHub repo]
+        li Create pull requests, submit bugs, suggest new features
+        li Follow #[a(href='https://twitter.com/akveo_inc',target='_blank') us on Twitter]
+        li Like #[a(href='https://www.facebook.com/akveo/',target='_blank') our page on Facebook]
+  div.index-block
+    div.wrap
+      h1.centered Can I hire you?
+      p Yes! We are available for hire. Visit #[a(href='http://akveo.com',target='_blank') our homepage]
+        | or simply leave us a note at #[a(href='mailto:contact@akveo.com') contact@akveo.com].
+        | We will be happy to work with you!
+

docs/templates/layout.jade

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+doctype html
+block vars
+  - var bodyclass = null;
+  - var groupedArticles = env.helpers.getGroupedArticles(contents);
+  - var firstArticleUrl = groupedArticles[0].items[0].url
+  - var installationArticleUrl = groupedArticles[0].items[1].url
+html(lang='en')
+  head
+    block head
+      meta(charset='utf-8')
+      meta(http-equiv='X-UA-Compatible', content='IE=edge,chrome=1')
+      meta(name='viewport', content='width=device-width')
+      meta(name='keywords', content='admin,dashboard,template,angular,bootstrap,blur,panel,html,css,javascript')
+      title
+        block title
+          = locals.name
+      link(rel='alternate', href=locals.url+'/feed.xml', type='application/rss+xml', title=locals.description)
+      link(rel='stylesheet', href='https://fonts.googleapis.com/css?family=Roboto:400,100,100italic,300,300italic,400italic,500,500italic,700,700italic,900italic,900|Anonymous+Pro:400,700,400italic,700italic&subset=latin,greek,greek-ext,vietnamese,cyrillic-ext,latin-ext,cyrillic')
+      link(rel='stylesheet', href='https://cdnjs.cloudflare.com/ajax/libs/github-fork-ribbon-css/0.2.0/gh-fork-ribbon.min.css')
+
+      link(rel='stylesheet', href=contents.css['main.scss'].url)
+      link(rel='shortcut icon', href=contents.images['favicon.png'].url)
+  body(class=bodyclass)
+    div.container
+      div.nav-main
+        div.wrap
+          a.nav-home(href=contents['index'].url)
+            img.nav-logo(src=contents.images['logo.png'].url, width=24,height=24)
+            | #[span.blur-label ng2-]admin
+          ul.nav-site.nav-site-internal
+            li
+              a(class= locals.page.metadata.activeHome ? 'active': '')(href=contents['index'].url) Home
+            li
+              a(class= !locals.page.metadata.activeHome ? 'active': '')(href=firstArticleUrl) Docs
+          span.nav-docs-right
+            | Need some help? Let us know! #[a(href='mailto:contact@akveo.com') contact@akveo.com]
+      block content
+        h2 Welcome to blur admin!
+      footer.wrap
+        div.left Powered by Angular 2, Bootstrap 4, Webpack and many more...
+        div.right
+          | © 2015–2016 Akveo LLC<br />
+          | Documentation licensed under #[a(href='https://creativecommons.org/licenses/by/4.0/') CC BY 4.0].
+    a(href='https://github.com/akveo/ng2-admin', class='github-fork-ribbon', title="Star & Fork on GitHub")