The source code of the project has been split up into several packages,
each one pertaining to different aspects of the system. Currently there
is a main package, a drw package, containing all the funcitons
regarding the drawing of the calendar, and a util package containing
time-related project specific functions and general utility functions
for the project.
There are plenty of subsystems in the program which have not even been
developed yet, and new packages will be made pertaining to those. The
package tree may be heavily reorganized in the near future.
