Upgrade to Bootstrap 4 beta

Author: mrholek

AJAX_Full_Project_GULP/bower.json

@@ -2,8 +2,8 @@
   "name": "coreui-ajax",
   "version": "1.0.0-alpha.6",
   "dependencies": {
-    "bootstrap": "4.0.0-alpha.6",
-    "tether": "latest",
+    "bootstrap": "v4.0.0-beta",
+    "popper.js": "https://unpkg.com/popper.js",
     "jquery": "^3.0.0",
     "fontawesome": "latest",
     "simple-line-icons": "latest",

AJAX_Starter_GULP/bower.json

@@ -2,8 +2,8 @@
   "name": "coreui-ajax",
   "version": "1.0.0-alpha.6",
   "dependencies": {
-    "bootstrap": "4.0.0-alpha.6",
-    "tether": "latest",
+    "bootstrap": "v4.0.0-beta",
+    "popper.js": "https://unpkg.com/popper.js",
     "jquery": "^3.0.0",
     "fontawesome": "latest",
     "simple-line-icons": "latest",

Static_Full_Project_GULP/bower.json

@@ -2,8 +2,8 @@
   "name": "coreui-ajax",
   "version": "1.0.0-alpha.6",
   "dependencies": {
-    "bootstrap": "4.0.0-alpha.6",
-    "tether": "latest",
+    "bootstrap": "v4.0.0-beta",
+    "popper.js": "https://unpkg.com/popper.js",
     "jquery": "^3.0.0",
     "fontawesome": "latest",
     "simple-line-icons": "latest",