Add the new header files to noinst_HEADERS

Also add a changes/ file.

changes/split_orh

@@ -0,0 +1,4 @@
+  o Code simplifications and refactoring:
+    - Take a first step towards making or.h smaller by splitting out function
+      definitions for all source files in src/or/. Leave structures and
+      defines in or.h for now.

src/or/Makefile.am

@@ -45,7 +45,13 @@ tor_LDADD = ./libtor.a ../common/libor.a ../common/libor-crypto.a \
 	../common/libor-event.a \
 	@TOR_ZLIB_LIBS@ -lm @TOR_LIBEVENT_LIBS@ @TOR_OPENSSL_LIBS@ @TOR_LIB_WS32@ @TOR_LIB_GDI@
 
-noinst_HEADERS = or.h eventdns.h eventdns_tor.h micro-revision.i
+noinst_HEADERS = buffers.h circuitbuild.h circuitlist.h circuituse.h \
+	command.h config.h connection_edge.h connection.h connection_or.h \
+	control.h cpuworker.h directory.h dirserv.h dirvote.h dns.h \
+	dnsserv.h geoip.h hibernate.h main.h microdesc.h networkstatus.h \
+	ntmain.h onion.h policies.h reasons.h relay.h rendclient.h \
+	rendcommon.h rendmid.h rendservice.h rephist.h router.h routerlist.h \
+	routerparse.h or.h eventdns.h eventdns_tor.h micro-revision.i
 
 config_codedigest.o: or_sha1.i