Bump version to 5.0.0-alpha1 (#29925)

Also add v4.5.0 in versions and keep README.md pointing to v4.5.0 so that there are no broken stuff.

js/dist/tooltip.js

 /*!
-  * Bootstrap tooltip.js v4.3.1 (https://getbootstrap.com/)
+  * Bootstrap tooltip.js v5.0.0-alpha1 (https://getbootstrap.com/)
   * Copyright 2011-2020 The Bootstrap Authors (https://github.com/twbs/bootstrap/graphs/contributors)
   * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
   */
@@ -82,7 +82,7 @@
 
   /**
    * --------------------------------------------------------------------------
-   * Bootstrap (v4.3.1): util/index.js
+   * Bootstrap (v5.0.0-alpha1): util/index.js
    * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
    * --------------------------------------------------------------------------
    */
@@ -213,7 +213,7 @@
 
   /**
    * --------------------------------------------------------------------------
-   * Bootstrap (v4.3.1): util/sanitizer.js
+   * Bootstrap (v5.0.0-alpha1): util/sanitizer.js
    * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
    * --------------------------------------------------------------------------
    */
@@ -345,7 +345,7 @@
    */
 
   var NAME = 'tooltip';
-  var VERSION = '4.3.1';
+  var VERSION = '5.0.0-alpha1';
   var DATA_KEY = 'bs.tooltip';
   var EVENT_KEY = "." + DATA_KEY;
   var CLASS_PREFIX = 'bs-tooltip';

js/index.esm.js

 /**
  * --------------------------------------------------------------------------
- * Bootstrap (v4.3.1): index.esm.js
+ * Bootstrap (v5.0.0-alpha1): index.esm.js
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  * --------------------------------------------------------------------------
  */

js/index.umd.js

 /**
  * --------------------------------------------------------------------------
- * Bootstrap (v4.3.1): index.umd.js
+ * Bootstrap (v5.0.0-alpha1): index.umd.js
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  * --------------------------------------------------------------------------
  */

js/src/alert.js

 /**
  * --------------------------------------------------------------------------
- * Bootstrap (v4.3.1): alert.js
+ * Bootstrap (v5.0.0-alpha1): alert.js
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  * --------------------------------------------------------------------------
  */
@@ -22,7 +22,7 @@ import EventHandler from './dom/event-handler'
  */
 
 const NAME = 'alert'
-const VERSION = '4.3.1'
+const VERSION = '5.0.0-alpha1'
 const DATA_KEY = 'bs.alert'
 const EVENT_KEY = `.${DATA_KEY}`
 const DATA_API_KEY = '.data-api'

js/src/button.js

 /**
  * --------------------------------------------------------------------------
- * Bootstrap (v4.3.1): button.js
+ * Bootstrap (v5.0.0-alpha1): button.js
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  * --------------------------------------------------------------------------
  */
@@ -17,7 +17,7 @@ import SelectorEngine from './dom/selector-engine'
  */
 
 const NAME = 'button'
-const VERSION = '4.3.1'
+const VERSION = '5.0.0-alpha1'
 const DATA_KEY = 'bs.button'
 const EVENT_KEY = `.${DATA_KEY}`
 const DATA_API_KEY = '.data-api'

js/src/carousel.js

 /**
  * --------------------------------------------------------------------------
- * Bootstrap (v4.3.1): carousel.js
+ * Bootstrap (v5.0.0-alpha1): carousel.js
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  * --------------------------------------------------------------------------
  */
@@ -28,7 +28,7 @@ import SelectorEngine from './dom/selector-engine'
  */
 
 const NAME = 'carousel'
-const VERSION = '4.3.1'
+const VERSION = '5.0.0-alpha1'
 const DATA_KEY = 'bs.carousel'
 const EVENT_KEY = `.${DATA_KEY}`
 const DATA_API_KEY = '.data-api'

js/src/collapse.js

 /**
  * --------------------------------------------------------------------------
- * Bootstrap (v4.3.1): collapse.js
+ * Bootstrap (v5.0.0-alpha1): collapse.js
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  * --------------------------------------------------------------------------
  */
@@ -28,7 +28,7 @@ import SelectorEngine from './dom/selector-engine'
  */
 
 const NAME = 'collapse'
-const VERSION = '4.3.1'
+const VERSION = '5.0.0-alpha1'
 const DATA_KEY = 'bs.collapse'
 const EVENT_KEY = `.${DATA_KEY}`
 const DATA_API_KEY = '.data-api'

js/src/dom/data.js

 /**
  * --------------------------------------------------------------------------
- * Bootstrap (v4.3.1): dom/data.js
+ * Bootstrap (v5.0.0-alpha1): dom/data.js
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  * --------------------------------------------------------------------------
  */

js/src/dom/event-handler.js

 /**
  * --------------------------------------------------------------------------
- * Bootstrap (v4.3.1): dom/event-handler.js
+ * Bootstrap (v5.0.0-alpha1): dom/event-handler.js
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  * --------------------------------------------------------------------------
  */

js/src/dom/manipulator.js

 /**
  * --------------------------------------------------------------------------
- * Bootstrap (v4.3.1): dom/manipulator.js
+ * Bootstrap (v5.0.0-alpha1): dom/manipulator.js
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  * --------------------------------------------------------------------------
  */

js/src/dom/polyfill.js

@@ -2,7 +2,7 @@
 
 /**
  * --------------------------------------------------------------------------
- * Bootstrap (v4.3.1): dom/polyfill.js
+ * Bootstrap (v5.0.0-alpha1): dom/polyfill.js
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  * --------------------------------------------------------------------------
  */

js/src/dom/selector-engine.js

 /**
  * --------------------------------------------------------------------------
- * Bootstrap (v4.3.1): dom/selector-engine.js
+ * Bootstrap (v5.0.0-alpha1): dom/selector-engine.js
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  * --------------------------------------------------------------------------
  */

js/src/dropdown.js

 /**
  * --------------------------------------------------------------------------
- * Bootstrap (v4.3.1): dropdown.js
+ * Bootstrap (v5.0.0-alpha1): dropdown.js
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  * --------------------------------------------------------------------------
  */
@@ -26,7 +26,7 @@ import SelectorEngine from './dom/selector-engine'
  */
 
 const NAME = 'dropdown'
-const VERSION = '4.3.1'
+const VERSION = '5.0.0-alpha1'
 const DATA_KEY = 'bs.dropdown'
 const EVENT_KEY = `.${DATA_KEY}`
 const DATA_API_KEY = '.data-api'

js/src/modal.js

 /**
  * --------------------------------------------------------------------------
- * Bootstrap (v4.3.1): modal.js
+ * Bootstrap (v5.0.0-alpha1): modal.js
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  * --------------------------------------------------------------------------
  */
@@ -27,7 +27,7 @@ import SelectorEngine from './dom/selector-engine'
  */
 
 const NAME = 'modal'
-const VERSION = '4.3.1'
+const VERSION = '5.0.0-alpha1'
 const DATA_KEY = 'bs.modal'
 const EVENT_KEY = `.${DATA_KEY}`
 const DATA_API_KEY = '.data-api'

js/src/popover.js

 /**
  * --------------------------------------------------------------------------
- * Bootstrap (v4.3.1): popover.js
+ * Bootstrap (v5.0.0-alpha1): popover.js
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  * --------------------------------------------------------------------------
  */
@@ -17,7 +17,7 @@ import Tooltip from './tooltip'
  */
 
 const NAME = 'popover'
-const VERSION = '4.3.1'
+const VERSION = '5.0.0-alpha1'
 const DATA_KEY = 'bs.popover'
 const EVENT_KEY = `.${DATA_KEY}`
 const CLASS_PREFIX = 'bs-popover'

js/src/scrollspy.js

 /**
  * --------------------------------------------------------------------------
- * Bootstrap (v4.3.1): scrollspy.js
+ * Bootstrap (v5.0.0-alpha1): scrollspy.js
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  * --------------------------------------------------------------------------
  */
@@ -24,7 +24,7 @@ import SelectorEngine from './dom/selector-engine'
  */
 
 const NAME = 'scrollspy'
-const VERSION = '4.3.1'
+const VERSION = '5.0.0-alpha1'
 const DATA_KEY = 'bs.scrollspy'
 const EVENT_KEY = `.${DATA_KEY}`
 const DATA_API_KEY = '.data-api'

js/src/tab.js

 /**
  * --------------------------------------------------------------------------
- * Bootstrap (v4.3.1): tab.js
+ * Bootstrap (v5.0.0-alpha1): tab.js
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  * --------------------------------------------------------------------------
  */
@@ -24,7 +24,7 @@ import SelectorEngine from './dom/selector-engine'
  */
 
 const NAME = 'tab'
-const VERSION = '4.3.1'
+const VERSION = '5.0.0-alpha1'
 const DATA_KEY = 'bs.tab'
 const EVENT_KEY = `.${DATA_KEY}`
 const DATA_API_KEY = '.data-api'

js/src/toast.js

 /**
  * --------------------------------------------------------------------------
- * Bootstrap (v4.3.1): toast.js
+ * Bootstrap (v5.0.0-alpha1): toast.js
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  * --------------------------------------------------------------------------
  */
@@ -24,7 +24,7 @@ import Manipulator from './dom/manipulator'
  */
 
 const NAME = 'toast'
-const VERSION = '4.3.1'
+const VERSION = '5.0.0-alpha1'
 const DATA_KEY = 'bs.toast'
 const EVENT_KEY = `.${DATA_KEY}`
 

js/src/tooltip.js

 /**
  * --------------------------------------------------------------------------
- * Bootstrap (v4.3.1): tooltip.js
+ * Bootstrap (v5.0.0-alpha1): tooltip.js
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  * --------------------------------------------------------------------------
  */
@@ -33,7 +33,7 @@ import SelectorEngine from './dom/selector-engine'
  */
 
 const NAME = 'tooltip'
-const VERSION = '4.3.1'
+const VERSION = '5.0.0-alpha1'
 const DATA_KEY = 'bs.tooltip'
 const EVENT_KEY = `.${DATA_KEY}`
 const CLASS_PREFIX = 'bs-tooltip'