Add TypeScript support

Release 4.1.1

Author: vallpaper

Diff for: lib/api-client.js

@@ -45,7 +45,7 @@ class ApiClient {
         url: url,
         headers: {'Accept': 'application/json',
                   'Content-Type': 'application/json',
-                  'User-Agent': 'recombee-node-api-client/4.1.0'},
+                  'User-Agent': 'recombee-node-api-client/4.1.1'},
         timeout: request.timeout,
         agent: this.options.agent
     };
@@ -122,7 +122,7 @@ class ApiClient {
   }
 
   //https://stackoverflow.com/questions/18251399/why-doesnt-encodeuricomponent-encode-single-quotes-apostrophes
-  _rfc3986EncodeURIComponent (str) {  
+  _rfc3986EncodeURIComponent (str) {
     return encodeURIComponent(str).replace(/[!'()*]/g, escape);  
   }