refactor: publish es6 instead of es5 (#4502)

ES5 is necessary in projects because Uglify does not support ES6.

packages/@angular/cli/blueprints/ng2/files/e2e/tsconfig.json

@@ -11,7 +11,7 @@
     "moduleResolution": "node",
     "outDir": "../dist/out-tsc-e2e",
     "sourceMap": true,
-    "target": "es5",
+    "target": "es6",
     "typeRoots": [
       "../node_modules/@types"
     ]

packages/@angular/cli/tsconfig.json

@@ -12,7 +12,7 @@
     "rootDir": ".",
     "sourceMap": true,
     "sourceRoot": "/",
-    "target": "es5",
+    "target": "es6",
     "lib": [
       "es2016"
     ],

packages/@ngtools/json-schema/tsconfig.json

@@ -13,7 +13,7 @@
       "es2016",
       "dom"
     ],
-    "target": "es5",
+    "target": "es6",
     "sourceMap": true,
     "sourceRoot": "/",
     "baseUrl": "./",

packages/@ngtools/logger/tsconfig.json

@@ -13,7 +13,7 @@
       "es2016",
       "dom"
     ],
-    "target": "es5",
+    "target": "es6",
     "sourceMap": true,
     "sourceRoot": "/",
     "baseUrl": ".",

packages/@ngtools/webpack/tsconfig.json

@@ -13,7 +13,7 @@
       "es2016",
       "dom"
     ],
-    "target": "es5",
+    "target": "es6",
     "sourceMap": true,
     "sourceRoot": "/",
     "baseUrl": "./",

tsconfig.json

@@ -13,7 +13,7 @@
     "sourceMap": true,
     "sourceRoot": "",
     "inlineSourceMap": true,
-    "target": "es5",
+    "target": "es6",
     "lib": [
       "es2016"
     ],
@@ -27,8 +27,8 @@
     ],
     "paths": {
       "@angular/cli/*": [ "./packages/@angular/cli/*" ],
-      "@angular-cli/ast-tools": [ "./packages/ast-tools/src" ],
-      "@angular-cli/base-href-webpack": [ "./packages/base-href-webpack/src" ],
+      "@ngtools/json-schema": [ "./packages/json-schema/src" ],
+      "@ngtools/logger": [ "./packages/logger/src" ],
       "@ngtools/webpack": [ "./packages/webpack/src" ]
     }
   },