feat(scrollspy): add support angular 7 and above in package.json

Fix #19

Author: edoparearyee

package.json

@@ -45,23 +45,23 @@
     "postrelease": "npm run packagr"
   },
   "peerDependencies": {
-    "@angular/core": ">=5.0.0 <7.0.0 || >=5.0.0-beta <7.0.0",
-    "@thisissoon/angular-inviewport": ">=4.0.0 <5.0.0"
+    "@angular/core": ">=5.0.0",
+    "@thisissoon/angular-inviewport": ">=4.0.0"
   },
   "devDependencies": {
-    "@angular-devkit/build-angular": "~0.6.5",
-    "@angular/animations": "^6.1.10",
-    "@angular/cli": "^6.0.5",
-    "@angular/common": "^6.1.10",
-    "@angular/compiler": "^6.1.10",
-    "@angular/compiler-cli": "^6.1.10",
-    "@angular/core": "^6.1.10",
-    "@angular/forms": "^6.1.10",
-    "@angular/http": "^6.1.10",
-    "@angular/language-service": "^6.1.10",
-    "@angular/platform-browser": "^6.1.10",
-    "@angular/platform-browser-dynamic": "^6.1.10",
-    "@angular/router": "^6.1.10",
+    "@angular-devkit/build-angular": "~0.13.0",
+    "@angular/animations": "^7.2.3",
+    "@angular/cli": "^7.3.0",
+    "@angular/common": "^7.2.3",
+    "@angular/compiler": "^7.2.3",
+    "@angular/compiler-cli": "^7.2.3",
+    "@angular/core": "^7.2.3",
+    "@angular/forms": "^7.2.3",
+    "@angular/http": "^7.2.3",
+    "@angular/language-service": "^7.2.3",
+    "@angular/platform-browser": "^7.2.3",
+    "@angular/platform-browser-dynamic": "^7.2.3",
+    "@angular/router": "^7.2.3",
     "@thisissoon/angular-inviewport": "^4.0.0",
     "@thisissoon/schematics": "^1.0.0-alpha.18",
     "@types/jasmine": "~2.5.53",
@@ -72,6 +72,7 @@
     "coveralls": "^3.0.0",
     "cz-conventional-changelog": "^2.1.0",
     "husky": "^1.1.0",
+    "intersection-observer": "^0.5.1",
     "jasmine-core": "~2.6.2",
     "jasmine-spec-reporter": "~4.1.0",
     "karma": "~1.7.0",
@@ -83,10 +84,10 @@
     "karma-mocha-reporter": "^2.2.5",
     "karma-spec-reporter": "0.0.31",
     "lint-staged": "^7.3.0",
-    "ng-packagr": "^4.4.0",
+    "ng-packagr": "^4.7.0",
     "prettier": "^1.14.3",
     "protractor": "~5.1.2",
-    "rxjs": "^6.2.0",
+    "rxjs": "^6.4.0",
     "standard-version": "^4.2.0",
     "stylelint": "^9.6.0",
     "stylelint-config-prettier": "^4.0.0",
@@ -96,11 +97,11 @@
     "stylelint-scss": "^3.3.1",
     "ts-node": "~3.2.0",
     "tsickle": "^0.34.0",
-    "tslib": "^1.9.3",
+    "tslib": "^1.9.0",
     "tslint": "~5.7.0",
     "tslint-config-prettier": "^1.15.0",
-    "typescript": "~2.7.2",
-    "zone.js": "^0.8.26"
+    "typescript": "~3.2.4",
+    "zone.js": "^0.8.29"
   },
   "config": {
     "commitizen": {

src/polyfills.ts

@@ -19,30 +19,26 @@
  */
 
 /** IE9, IE10 and IE11 requires all of the following polyfills. **/
-// import 'core-js/es6/symbol';
-// import 'core-js/es6/object';
-// import 'core-js/es6/function';
-// import 'core-js/es6/parse-int';
-// import 'core-js/es6/parse-float';
-// import 'core-js/es6/number';
-// import 'core-js/es6/math';
-// import 'core-js/es6/string';
-// import 'core-js/es6/date';
-// import 'core-js/es6/array';
-// import 'core-js/es6/regexp';
-// import 'core-js/es6/map';
-// import 'core-js/es6/weak-map';
-// import 'core-js/es6/set';
+import 'core-js/es6/symbol';
+import 'core-js/es6/object';
+import 'core-js/es6/function';
+import 'core-js/es6/parse-int';
+import 'core-js/es6/parse-float';
+import 'core-js/es6/number';
+import 'core-js/es6/math';
+import 'core-js/es6/string';
+import 'core-js/es6/date';
+import 'core-js/es6/array';
+import 'core-js/es6/regexp';
+import 'core-js/es6/map';
+import 'core-js/es6/weak-map';
+import 'core-js/es6/set';
 
 /** IE10 and IE11 requires the following for NgClass support on SVG elements */
 // import 'classlist.js';  // Run `npm install --save classlist.js`.
 
 /** IE10 and IE11 requires the following for the Reflect API. */
-// import 'core-js/es6/reflect';
-
-/** Evergreen browsers require these. **/
-// Used for reflect-metadata in JIT. If you use AOT (and only Angular decorators), you can remove.
-import 'core-js/es7/reflect';
+import 'core-js/es6/reflect';
 
 /**
  * Required to support Web Animations `@angular/platform-browser/animations`.
@@ -68,3 +64,5 @@ import 'zone.js/dist/zone'; // Included with Angular CLI.
  * Need to import at least one locale-data with intl.
  */
 // import 'intl/locale-data/jsonp/en';
+
+import 'intersection-observer';

tsconfig.json

@@ -1,6 +1,7 @@
 {
   "compileOnSave": false,
   "compilerOptions": {
+    "importHelpers": true,
     "outDir": "./dist/out-tsc",
     "sourceMap": true,
     "declaration": false,