Further Debian split fixes.

The doc installation was flattened, breaking links to howto/.
Silly cut&paste error made git-doc depend on tk8.4.  Doh.
Move most of the documentation (except manuals) to git-doc.

Signed-off-by: Junio C Hamano <junkio@cox.net>

debian/control

@@ -20,7 +20,7 @@ Description: The git content addressable filesystem
 
 Package: git-doc
 Architecture: all
-Depends: ${shlibs:Depends}, ${misc:Depends}, git-core, tk8.4
+Depends: ${shlibs:Depends}, ${misc:Depends}, git-core
 Description: The git content addressable filesystem, Documentation
  This package contains documentation for GIT.
 

debian/git-doc.files

@@ -1,5 +1,5 @@
-/usr/share/doc/git-core/git-*.txt
-/usr/share/doc/git-core/git-*.html
+/usr/share/doc/git-core/*.txt
+/usr/share/doc/git-core/*.html
 /usr/share/doc/git-core/*/*.html
 /usr/share/doc/git-core/*/*.txt
 

debian/rules

@@ -62,8 +62,8 @@ install: build
 	make DESTDIR=$(DESTDIR) prefix=$(PREFIX) mandir=$(MANDIR) \
 		install install-doc
 
-	mkdir -p $(DOC_DESTDIR)
-	find $(DOC) '(' -name '*.txt' -o -name '*.html' ')' -exec install {} $(DOC_DESTDIR) ';'
+	make -C Documentation DESTDIR=$(DESTDIR) prefix=$(PREFIX) \
+		WEBDOC_DEST=$(DOC_DESTDIR) install-webdoc
 
 	dh_movefiles -p git-arch
 	dh_movefiles -p git-cvs