Adds initial icon. Refs #5.
Improves nakefile to deal with scanning icon sets. Refs #5.
Adds devel version icon. Refs #5.
Optimizes png icons. Refs #5.
Reorganizes paths to work with devel subdirs. Refs #5.
Documents task in changes log. Refs #5.
Adds contact logo, removes image assets. Refs #5.
Merge branch 'feature/t5_graphics'