Update Popper.js to 1.11.0 (twbs#23162)

Author: Johann-S

_config.yml

@@ -53,5 +53,5 @@ cdn:
   js_hash:        "sha384-vBWWzlZJ8ea9aCX4pEW3rVHjgjt7zpkNpZk+02D9phzyeVkE+jo0ieGizqPLForn"
   jquery:         https://code.jquery.com/jquery-3.2.1.slim.min.js
   jquery_hash:    "sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN"
-  popper:         https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.10.8/umd/popper.min.js
-  popper_hash:    "sha256-n96swYoYKdVyLr5XatK9CzcdyrpAI0xcSlIeWOZeTAI="
+  popper:         https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.11.0/umd/popper.min.js
+  popper_hash:    "sha384-b/U6ypiBEHpOf/4+1nzFpr53nxSS+GLCkfwBdFNTxtclqqenISfwAzpKaMNFNmj4"

assets/js/vendor/popper.min.js

@@ -32,6 +32,6 @@
   ],
   "dependencies": {
     "jquery": ">=1.9.1",
-    "popper.js": "^1.10.8"
+    "popper.js": "^1.11.0"
   }
 }

bower.json

@@ -10,7 +10,7 @@ toc: true
 
 Dropdowns are toggleable, contextual overlays for displaying lists of links and more. They're made interactive with the included Bootstrap dropdown JavaScript plugin. They're toggled by clicking, not by hovering; this is [an intentional design decision.](http://markdotto.com/2012/02/27/bootstrap-explained-dropdowns/)
 
-Dropdowns are built on a third party library, [Popper.js](https://popper.js.org), which provides dynamic positioning and viewport detection. Be sure to include [popper.min.js](https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.10.8/umd/popper.min.js) before Bootstrap's JavaScript.
+Dropdowns are built on a third party library, [Popper.js](https://popper.js.org), which provides dynamic positioning and viewport detection. Be sure to include [popper.min.js](https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.11.0/umd/popper.min.js) before Bootstrap's JavaScript.
 
 ## Accessibility
 

docs/4.0/components/dropdowns.md

@@ -11,7 +11,7 @@ toc: true
 Things to know when using the popover plugin:
 
 
-- Popovers rely on the 3rd party library [Popper.js](https://popper.js.org) for positioning. You must include [popper.min.js](https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.10.8/umd/popper.min.js) before bootstrap.js in order for popovers to work!
+- Popovers rely on the 3rd party library [Popper.js](https://popper.js.org) for positioning. You must include [popper.min.js](https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.11.0/umd/popper.min.js) before bootstrap.js in order for popovers to work!
 - Popovers require the [tooltip plugin]({{ site.baseurl }}/docs/{{ site.docs_version }}/components/tooltips/) as a dependency.
 - Popovers are opt-in for performance reasons, so **you must initialize them yourself**.
 - Zero-length `title` and `content` values will never show a popover.

docs/4.0/components/popovers.md

@@ -10,7 +10,7 @@ toc: true
 
 Things to know when using the tooltip plugin:
 
-- Tooltips rely on the 3rd party library [Popper.js](https://popper.js.org) for positioning. You must include [popper.min.js](https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.10.8/umd/popper.min.js) before bootstrap.js in order for tooltips to work!
+- Tooltips rely on the 3rd party library [Popper.js](https://popper.js.org) for positioning. You must include [popper.min.js](https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.11.0/umd/popper.min.js) before bootstrap.js in order for tooltips to work!
 - Tooltips are opt-in for performance reasons, so **you must initialize them yourself**.
 - Tooltips with zero-length titles are never displayed.
 - Specify `container: 'body'` to avoid rendering problems in more complex components (like our input groups, button groups, etc).

docs/4.0/components/tooltips.md

@@ -67,7 +67,7 @@
   "license": "MIT",
   "dependencies": {
     "jquery": ">=1.9.1",
-    "popper.js": "^1.10.8"
+    "popper.js": "^1.11.0"
   },
   "devDependencies": {
     "autoprefixer": "^7.1.2",