fix(HttpLoader): loading of translations when base-href is set

BREAKING CHANGE: this change might mess up with urls, I prefer to have a major version for it. If you have problems with your urls, check if base-href has been set correctly

src/http-loader.ts

@@ -3,7 +3,7 @@ import {TranslateLoader} from "@ngx-translate/core";
 import "rxjs/add/operator/map";
 
 export class TranslateHttpLoader implements TranslateLoader {
-    constructor(private http: HttpClient, public prefix: string = "/assets/i18n/", public suffix: string = ".json") {}
+    constructor(private http: HttpClient, public prefix: string = "./assets/i18n/", public suffix: string = ".json") {}
 
     /**
      * Gets the translations from the server