Update todo.md
made the output format for configurations nicer
Merge branch 'master' of github.com:schauder/degraph
fixed warnings
updated todos
Merge pull request #39 from KroneckerDelta/gui

rename GuiStarterTest to .. demo
Merge branch 'gui' of https://github.com/schauder/degraph.git into gui
Merge branch 'master' of https://github.com/schauder/degraph.git into gui