Add mkcatdefs and book.* to .gitignore

cde/.gitignore

@@ -144,6 +144,7 @@ programs/localized/ko_KR.dt-eucKR/msg/*.tmp.msg
 programs/localized/sv_SE.ISO8859-1/msg/*.tmp.msg
 programs/localized/zh_CN.dt-eucCN/msg/*.tmp.msg
 programs/localized/zh_TW.dt-eucTW/msg/*.tmp.msg
+programs/localized/util/mkcatdefs
 
 # dtappbuilder
 programs/dtappbuilder/src/ab/.dtcodegen.log
@@ -279,6 +280,9 @@ programs/dtappbuilder/src/libABil/bil_parse.h
 config/imake/Makefile.proto
 
 # doc 
+book.log
+book.out.idx
+book.esis
 doc/C/help-sdl/
 doc/C/m-guides/
 doc/C/man/man1/