Merge pull request #57 from mlabarca/master

Looks solid @mlabarca , thanks!

Changes:
* Allow passing a custom button label

Author: souly1

README.md

@@ -130,6 +130,7 @@ and use one of the two configurations:
 - `icon` (optional) - Any walkthrough type. If set to any of the predefined values ("single_tap", "double_tap", "swipe_down", "swipe_left", "swipe_right", "swipe_up"), in such case the icon will be bound to focus element (if exists), make sure to add 'ng-walkthrough.tap_icons.js' following instructions above. any other icon can be used and will be loaded from supplied folder
 - `main-caption` (optional) - Any walkthrough type. This is the text that will be displayed in the walk-through. Text can be formatted
 - `use-button` (optional) - Any walkthrough type. set to 'true' you want a button displayed that most be clicked in order to close walkthrough, otherwise clicking anywhere while walkthrough displayed will close it
+- `button-caption` (optional) - Customize the text of the dismiss button if present, default is "Got it!".
 - `walkthrough-hero-image` (optional) - Any walkthrough type. Image to display in walkthrough rigth below caption text
 - `icon-padding-left` (optional) - Any walkthrough type. Add padding to the icon from the left in percentage
 - `icon-padding-top` (optional) - Any walkthrough type. Add padding to the icon from the top in pixels

ng-walkthrough.js

@@ -76,6 +76,7 @@ angular.module('ng-walkthrough', [])
                     hasBackdrop: '=?',
                     hasGlow: '=?',
                     useButton: '=?',
+                    buttonCaption: '@?',
                     walkthroughHeroImage: '@?',
                     iconPaddingLeft: '@?',
                     iconPaddingTop: '@?',
@@ -198,7 +199,7 @@ angular.module('ng-walkthrough', [])
                             scope.closeIcon = close_icon;
                         },100);
                         scope.walkthroughIcon = getIcon(scope.icon);
-                        scope.buttonCaption = BUTTON_CAPTION_DONE;
+                        scope.buttonCaption = scope.buttonCaption || BUTTON_CAPTION_DONE;
                         if (scope.hasBackdrop === undefined){
                             scope.hasBackdrop = (scope.walkthroughType !== "tip");
                         }

test/ng-walkthroughSpec.js

@@ -127,6 +127,24 @@ describe('ng-walkthrough Directive', function() {
         expect($scope.isActive).toBe(false);
     });
 
+    it("Should create a walkthrough button with the custom label provided", function(){
+      //Arrange
+      setFixtures('<walkthrough' +
+      ' walkthrough-type="transparency"' +
+      ' is-active="isActive"' +
+      ' use-button=true' +
+      ' button-caption="CUSTOM-LABEL">' +
+      '</walkthrough>');
+      $compile($("body"))($scope);
+      $scope.isActive = true;
+      $scope.$digest();
+
+      var walkthroughButton = $('.walkthrough-done-button');
+
+      //Assert
+      expect(walkthroughButton.text()).toEqual("CUSTOM-LABEL");
+    });
+
     it("Should not close the walkthrough upon click anywhere other than close button when attribute 'use-button' set to 'true'", function(){
         //Arrange
         //Arrange