- fixed the footer image
- added links to images
- fixed the url of the TRF image (donation block)
- centered TRF logo in the donation block

Closes 796.
Merge branch 'fixFooter' into develop
Referenced the Exception file in the head of TaskRouteHandler.class.php (use Exception;)

Fixes #811
Merge branch 'develop' of gitlab.trommons.org:solas-match into develop
Referenced the Exception file (use Exception;) in the head of:

index.php
TaskDao.class.php
ProjectDao.class.php

Part of #811