Changed "schedules" to "patterns" in restrictions.
Made editorial changes to the type-(1, 1, 1) instances section.
Made editorial changes to the type-(1, 1, p) instances section.
Made editorial changes to the type-(1, m, p) instances section.
Made editorial changes to the type-(n, 1, 1) instances section.
Made editorial changes to the type-(n, 1, m) instances section. Resized the pattern tables and made them into figures, referencing them via labels instead of inline placing. Also, replaced instances of the word "schedule" by "pattern".
Fixed the proof of NP-completeness of type-(n, m, 1) instances, to use starting weeks instead of starting dates.