Update to 18.1.15 (#1111)

* Update to 18.1.15

* Downgrade @types/node

Co-authored-by: dxvladislavvolkov <[email protected]>

Author: dxvladislavvolkov

package.json

@@ -1,6 +1,6 @@
 {
   "name": "devextreme-angular",
-  "version": "18.1.14",
+  "version": "18.1.15",
   "description": "Angular UI and visualization components based on DevExtreme widgets",
   "repository": {
     "type": "git",
@@ -17,13 +17,13 @@
   "author": "Developer Express Inc.",
   "license": "MIT",
   "peerDependencies": {
-    "devextreme": "~18.1.14",
+    "devextreme": "~18.1.15",
     "@angular/core": ">5.0.0",
     "@angular/common": ">5.0.0",
     "@angular/forms": ">5.0.0"
   },
   "devDependencies": {
-    "devextreme": "~18.1.14",
+    "devextreme": "~18.1.15",
     "zone.js": "^0.8.25",
     "@angular/animations": "^5.0.0",
     "@angular/common": "^5.0.0",
@@ -38,7 +38,7 @@
     "@types/dot": "^1.0.29",
     "@types/jasmine": "2.5.38",
     "@types/mkdirp": "^0.3.29",
-    "@types/node": "^6.0.51",
+    "@types/node": "6.14.10",
     "@types/yargs": "^6.3.2",
     "codelyzer": "2.0.0-beta.4",
     "deepmerge": "^2.0.1",