Testing my new header dependency analyzer.

Rev: src/modules/CommonLog/clf.c:1.15
Rev: src/modules/Image/blit.c:1.56
Rev: src/modules/Image/colors.c:1.72
Rev: src/modules/Image/colortable.c:1.119
Rev: src/modules/Image/dct.c:1.25
Rev: src/modules/Image/default_font.c:1.8
Rev: src/modules/Image/font.c:1.83
Rev: src/modules/Image/image.c:1.209
Rev: src/modules/Image/layers.c:1.96
Rev: src/modules/Image/matrix.c:1.48
Rev: src/modules/Image/operator.c:1.46
Rev: src/modules/Image/orient.c:1.25
Rev: src/modules/Image/pattern.c:1.29
Rev: src/modules/Image/polyfill.c:1.45
Rev: src/modules/Image/search.c:1.27