Squashed 'lectures/' changes from 85d61dc..a678a2f ...

a678a2f Corrected page number generation The calculation was modulo 7 but the pages were 6-up, so things wigged out once you got beyond 5 pages of notes or handout (e.g., two page 5s).

git-subtree-dir: lectures
git-subtree-split: a678a2f

Squashed 'lectures/' changes from c0aaf50..85d61dc ...

85d61dc Tweaked header so that it always fits horizontally

git-subtree-dir: lectures
git-subtree-split: 85d61dc

Squashed 'lectures/' changes from 9ea99f2..c0aaf50 ...

c0aaf50 Corrected class names

git-subtree-dir: lectures
git-subtree-split: c0aaf50

Squashed 'lectures/' changes from 80e504e..9ea99f2 ...

9ea99f2 Added new lecture document classes & packages • deprecated lecturecombined.cls, lecturenotes.cls, lectureslides.cls • lecturecommon.sty is currently still used by courseoutline.cls,   lectureassignment.cls, lecturefig.cls, and lectureworksheet.cls

git-subtree-dir: lectures
git-subtree-split: 9ea99f2