Beleženje porabe časa.
Merge branch 'darko'

Conflicts:
	application/controllers/viewTasks.php
	application/models/stories.php
	application/models/tasks.php
	application/views/productbacklog.php
	application/views/viewTasks.php

	modified:   application/controllers/addstory.php
	modified:   application/controllers/mytasks.php
	modified:   application/controllers/verifyaddstory.php
	modified:   application/models/project.php
	modified:   application/models/task.php
	modified:   application/views/mytasks_view.php
	modified:   css/styles.css