USER GUIDE FOR NEW FEATURES:

To use the endorse you must be logged in as an admin user
Once logged in as an admin select a group and edit its setting
In the admin group settings page, toggle on the “Allow Endorse” checkbox and save this change
Go to a topic and find a post
On the post click on the upvote button
Refresh the page and there will be a message next to the timestamp stating that the post has been endorsed by an instructor and there will also be a message when you click on the number of people who voted stating the same message
Removing the upvote and refreshing the page will cause these messages to disappear
To user test this feature you can try logging in as non-admin users and upvote posts to ensure that the endorsement message is not displayed after upovting. Then login as an admin and upvote the post to ensure it works for admins. Also try removing the upvote as an admin to make sure the message goes away. Note that the page must be refreshed after the upvote action in order to see changes.

Testing for endorse can be found in test/topics.js
These tests ensure that when admins upvote the boolean showendorse is set to true and if they are not an admin then showendorse is kept as false
These tests are sufficient as they cover the possible scnearios of both admin and non-admin users upvoting.

To use the search feature you must be logged in
Once logged in, navigate to any category (Announcements, General Discussion, Comments, Blog)
Add at least 2 new topics if there are no topics present.
Find the search bar next to the New Topic Button in the tool bar.
Enter a query: type in any keyword found in a topic you created. Only posts with the keyword in it will be displayed.
If the keyword does not exist in any content or title, a message No topics match the search term ___ will be displayed.
If the search query is in the content, a small snippet will show under the topic, with the query term bolded.
Clicking on results will take you directly to post.
To user test this feature try searching for a common keyword and ensure relevant posts show up. You can also create a new post and search for a term that exists in the post to verify. Search for a word that does not exist and ensure "No topics match the search term" message displays.

Testing backend changes can be found in test/categories.js
Added tests to getCategoryTopics tests, which was the only backend function changed, to ensure that each topic has a content field and that the content fields have no html tags.
Otherwise, no other backend changes were made for Search that can be tested.

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