Added save_projects_ini function
New listing functions

Now the chart printing function has been broken into three different
listing functions (one for todo, one for doing and one for done). Some
other minor fixes have also been done.
Added favicon

Favicon link added to show_groups.php and create_group.php
Added Project Creation

Fully functional project creation
Updated show_chart.php

show_chart.php should now show the charts just fine. Some CSS code and
images have also been added.
Actions not yet working because they depend on another file yet to be
created, but links for it are there already.