fix(npm): use @angular/common peer dependency instead of `@angular/…

…http`

Use @angular/common instead of @angular/http and also use 2.3.0 instead of 2.3.1.

package.json

@@ -31,16 +31,15 @@
   "typings": "index.d.ts",
   "peerDependencies": {
     "@ngx-translate/core": ">=6.0.0",
-    "@angular/core": ">=4.3.1",
-    "@angular/http": ">=4.3.1"
+    "@angular/core": ">=4.3.0",
+    "@angular/common": ">=4.3.0"
   },
   "devDependencies": {
     "@angular/animations": "4.3.1",
     "@angular/common": "4.3.1",
     "@angular/compiler": "4.3.1",
     "@angular/compiler-cli": "4.3.1",
     "@angular/core": "4.3.1",
-    "@angular/http": "4.3.1",
     "@ngx-translate/core": "7.0.0",
     "@angular/platform-browser": "4.3.1",
     "@angular/platform-browser-dynamic": "4.3.1",