updated changelog.md

Author: sanjeev

CHANGELOG-1.0.md

@@ -1,6 +1,25 @@
 CHANGELOG for 1.0.x
 ===================
 
+* 1.0.2 (Released on 2020-03-30)
+
+   **Ticket API's:**
+   * Getting all Ticket Types. 
+   * Deleting the ticket forever action after trash.
+   * Assigning a ticket to agent.
+   * Adding and removing collaborator for a ticket.
+   * Downloading the attachent for a ticket.
+   * Downloading zip file for a ticket.
+
+   **Updating the ticket properties**
+   * Updating a agent on a ticket.
+   * Updating a status on a ticket.
+   * Updating a priority on a ticket.
+   * Updating a group on a ticket.
+   * Updating a team on a ticket.
+   * Updating a type on a ticket.
+   * Removing label on a ticket.
+
 * 1.0.1 (Released on 2020-02-24)
 
    * **Ticket Related APIs:** Added Ticket Related APIs like Ticket Create, Fetch all tickets, View or load a ticket, Trash ticket, Ticket reply(Add a rply to ticket).