undo disabled exam btn

Author: FreekBes

public/index.html

@@ -50,7 +50,7 @@ <h3>This computer is reserved for an exam between <span id="exam-mode-start">...
 				<p><span id="exam-mode-projects"></span></p>
 				<br>
 				<p>Click the arrow below to start your exam.</p>
-				<button type="submit" id="exam-mode-start-button" disabled title="Start your exam">&#10149;</button>
+				<button type="submit" id="exam-mode-start-button" title="Start your exam">&#10149;</button>
 			</form>
 
 			<!-- Message -->