add a maven exec task for TypeScript definition manager

Signed-off-by: Oleksii Orel <oorel@codenvy.com>

dashboard/README.md

@@ -10,11 +10,12 @@ Che Dashboard
 - npm
 - Bower
 - gulp
+- typings
 
 Installation instructions for Node.js and npm can be found on the following [link](https://docs.npmjs.com/getting-started/installing-node). Bower and gulp are CLI utilities which are installed via npm:
 
 ```sh
-$ npm install --global bower gulp
+$ npm install --global bower gulp typings
 ```
 
 #Quick start

dashboard/pom.xml

@@ -62,6 +62,10 @@
                                 <exec dir="${basedir}" executable="npm" failonerror="true">
                                     <arg value="install" />
                                 </exec>
+                                <!-- Download Typings dependencies -->
+                                <exec dir="${basedir}" executable="typings" failonerror="true">
+                                    <arg value="install" />
+                                </exec>
                                 <!-- Download Bower dependencies -->
                                 <exec dir="${basedir}" executable="bower" failonerror="true">
                                     <arg value="install" />