Show all tasks in index page

Added partials to render all tasks in index page, according to their status
Fix error when creating task; Show taks descriptio

Fixes failure when creating new tasks
Change appearance in the index page to show task's description
Add edit and delte links in task view

Adds edit and delete links in the index page, where all tasks are shown
Adds page to edit

Edit page is now working
Added javascript to fade out a task when it is deleted, removing the necessity of updating the page
Merge branch 'finishindexpage'