docs(tutorial): display button icons (Previous, Live Demo, ...)

In relation to https://github.com/angular/dgeni-packages/pull/8

Closes #6641
docs(guide/directive): fix typo

`restictions` -> `restrictions`

Closes #6604
docs(guide/migration): fix typos

A few typos fixed.

Closes #6605
docs(guide/migration): fix broken link
docs(ngBind): fix typo

`preferrable` -> `preferable`

Typo fixed

Closes #6606
chore(build): upgrade grunt-jscs-checker to ~0.4.0

this is primarily to resolve peerdependency version mismatch issue
docs($sce): correct typo

`consititute` -> `constitute`

Typo fixed

Closes #6607
docs(changelog): release notes for 1.3.0-beta.1 retractable-eyebrow
docs(404 errors): provide a better 404 experience

It is a bit rough and ready but does a better job than nothing.
docs(Error404): improve search results layout
docs(Error404): better heading
docs(tutorial/step-12): correct application name

Fixed wrong app name:
- phonecat -> phonecatApp, which meets the code in app.js

Closes #6611
docs(guide/providers): remove unneeded word "the"

no need to specify which space, there's only one :)

Closes #6622
docs(guide/forms): remove unnecessary controller reference

the controller reference was breaking the custom validation example

Closes #6525
Closes #6533
docs($route): change routes property to correct type

change $route.routes property type to Object, property is marked incorrectly as an Array

Closes #6552
chore(docs): ensure the "Improve this doc" button is clickable

Closes #6631
docs(ngRepeat): Separate animation class in new lines

Moving to new lines & making it bold to avoid confusion
when they r all in same line without any separation

Closes #6633
docs(route.js): changed html entities lt gt to < and >
chore(build): don't instruct Jenkins test on IE

for an unknown reason the VMs can't connect to local karma, so all builds on Jenkins (ci.angularjs.org)
are failing right now.

Since we want to kill Jenkins anyway, and travis tests on IE, this should not have any
significant impact on us.

Conflicts:
	jenkins_build.sh
chore(npm): add shrinkwrap to lock down dependencies

We need to be able to build angular at older shas, without the lock file / shrinkwrap file
the dependencies will resolve differently on different machines and at different times.

This will help us avoid broken builds and hard to track down issues.

I had to manually edit this file after it was generated because `npm shrinkwrap` will install
optional dependencies as if they were hard dependencies.

See: https://github.com/npm/npm/issues/2679#issuecomment-37361236

My manual edit:

```
diff --git a/npm-shrinkwrap.json b/npm-shrinkwrap.json
index 756df44..dc157eb 100644
--- a/npm-shrinkwrap.json
+++ b/npm-shrinkwrap.json
@@ -3110,19 +3110,7 @@
         "chokidar": {
           "version": "0.8.1",
           "from": "https://registry.npmjs.org/chokidar/-/chokidar-0.8.1.tgz",
-          "resolved": "https://registry.npmjs.org/chokidar/-/chokidar-0.8.1.tgz",
-          "dependencies": {
-            "fsevents": {
-              "version": "0.1.6",
-              "from": "fsevents@0.1.6",
-              "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-0.1.6.tgz"
-            },
-            "recursive-readdir": {
-              "version": "0.0.2",
-              "from": "recursive-readdir@0.0.2",
-              "resolved": "https://registry.npmjs.org/recursive-readdir/-/recursive-readdir-0.0.2.tgz"
-            }
-          }
+          "resolved": "https://registry.npmjs.org/chokidar/-/chokidar-0.8.1.tgz"
         },
         "glob": {
           "version": "3.2.9",
```

Additionally chokidar doesn't list the dependencies above as optional, but that will hopefully
be soon fixed: https://github.com/paulmillr/chokidar/pull/106

In the meantime the patch from the PR above needs to be applied to
node_modules/karma/node_modules/chokidar/package.json before running `npm shrinkwrap`

----

After this change is applied, angular core developers don't need to do anything differently,
except when updating dependencies we need to call `npm update && npm shrinkwrap --dev`
followed by reappling my patch above until npm's bug.

Closes #6653