re-add prev lfs tracked files to docs

docs/res/base.js

@@ -0,0 +1,115 @@
+
+function $$(query, el) {
+  return [].slice.call((el || document).querySelectorAll(query))
+}
+
+function $(query, el) {
+  return (el || document).querySelector(query)
+}
+
+// fetchjson(url string) :Promise<Object>
+//
+var fetchjson = (
+  typeof window.fetch == 'function' ? (
+    function _fetchjson(url, cb) {
+      return window.fetch(url).then(function(r) { return r.json() })
+    }
+  ) :
+  function _fetchjson(url, cb) {
+    return new Promise(function(resolve, reject) {
+      var r = new XMLHttpRequest()
+      r.addEventListener("load", function(){
+        try {
+          resolve(JSON.parse(r.responseText))
+        } catch (err) {
+          reject(err)
+        }
+      })
+      r.addEventListener("error", function(ev) {
+        reject(ev.error || ev || new Error('network error'))
+      })
+      r.open("GET", url)
+      r.send()
+    })
+  }
+)
+
+
+// timeNow() :float
+//
+var timeNow = (
+  window.performance !== undefined && window.performance.now ? function() {
+    return window.performance.now()
+  } : Date.now ? function() {
+    return Date.now()
+  } : function() {
+    return (new Date()).getTime()
+  }
+)
+
+
+var HUDNotification = {
+  el: $('#hud-notification'),
+  timer: null,
+  visible: false,
+
+  show: function(message, duration) {
+    var n = this
+    n.el.firstChild.innerText = message
+    n.el.classList.add('visible')
+    if (n.visible) {
+      n.hide()
+      setTimeout(function(){ n.show(message, duration) }, 120)
+      return
+    }
+    n.visible = true
+    n.el.style.visibility = null
+    clearTimeout(n.timer)
+    n.timer = setTimeout(function(){ n.hide() }, duration || 1200)
+  },
+
+  hide: function() {
+    var n = this
+    if (n.visible) {
+      n.el.classList.remove('visible')
+      n.visible = false
+      n.el.style.visibility = 'hidden'
+    }
+  }
+}
+
+
+// InterDynamicTracking takes the font size in points or pixels and returns
+// the compensating tracking in EM.
+//
+function InterDynamicTracking(fontSize) {
+  var a = -0.0223, b = 0.185, c = -0.1745;
+  // tracking = a + b * e ^ (c * fontSize)
+  return a + b * Math.pow(Math.E, c * fontSize)
+}
+
+// InterDynamicLineHeight produces the line height for the given font size
+//
+function InterDynamicLineHeight(fontSize) {
+  var l = 1.4
+  return Math.round(fontSize * l)
+}
+
+
+// Mac or not? Maybe a buggy Safari or a busted Chrome on Windows...
+var isMac = false
+if (!window.MSStream &&
+    /mac|ipad|iphone|ipod/i.test(navigator.userAgent))
+{
+  isMac = true
+  if (navigator.userAgent.indexOf('Safari') != -1 &&
+      navigator.userAgent.indexOf('Chrome') == -1)
+  {
+    document.body.classList.add('safari')
+  }
+} else if (
+  navigator.userAgent.indexOf('Windows') != -1 &&
+  navigator.userAgent.indexOf('Chrome') != -1
+) {
+  document.body.classList.add('chrome-win')
+}