Replaced register_module with constants. Rev: server/modules/graphics/atlas/atlas.pike:1.3 Rev: server/modules/graphics/business_graphics/business.pike:1.120 Rev: server/modules/graphics/cimg.pike:1.12 Rev: server/modules/graphics/counter.pike:1.29 Rev: server/modules/graphics/gbutton.pike:1.26 Rev: server/modules/graphics/pimage.pike:1.19 Rev: server/modules/graphics/rimage/rimage.pike:1.13 Rev: server/modules/ldap/ldaptag.pike:1.4 Rev: server/modules/ldap/ldapuserauth.pike:1.14