rename/move some files; fix some stuff regarding this

doc/booker.pl

@@ -68,7 +68,7 @@ while (<IN>) {
       # EXAM,file
       chomp($_);
       @m = split(",",$_);
-      open(SRC,"<$m[1]") or die "Error:$srcline:Can't open source file $m[1]";
+      open(SRC,"<../$m[1]") or die "Error:$srcline:Can't open source file $m[1]";
 
       print "$srcline:Inserting $m[1]:";
 

makefile

@@ -15,7 +15,7 @@ endif
 
 coverage: LIBNAME:=-Wl,--whole-archive $(LIBNAME)  -Wl,--no-whole-archive
 
-include makefile.include
+include makefile_include.mk
 
 %.o: %.c
 ifneq ($V,1)

makefile.shared

@@ -7,7 +7,7 @@ ifndef LIBNAME
    LIBNAME=libtommath.la
 endif
 
-include makefile.include
+include makefile_include.mk
 
 LT	?= libtool
 LTCOMPILE = $(LT) --mode=compile --tag=CC $(CC)