* Added functions to Dialogs::Error.
# Not compilable.
- Removed '/src/dialogs/error.Xpp'.
+ Added ToDo dialogs to make up for the loss of Dialogs::Error::todo.cpp().
+ Added '/src/libs/messagehandler.Xpp' that outputs to both console and 'stderr.txt'.
* Renamed '/CREDITS' to '/AUTHOR'.
* Updated other files to accommodate said changes.