[PATCH] Fix QW Server build

Moving the QW client and NQ model.c files to the common dir broke the server
build. We need to prioritise the server directory's files over the common dir
to handle this case.

diff -urN -X exclude a/Makefile head/Makefile
--- a/Makefile	2006-05-13 20:31:01.000000000 +0930
+++ head/Makefile	2006-06-10 21:30:42.000000000 +0930
@@ -284,12 +286,12 @@
 $(BUILD_DIR)/qwgl/%.res:	common/%.rc	; $(do_windres_res_rc)
 $(BUILD_DIR)/qwgl/%.res:	QW/client/%.rc	; $(do_windres_res_rc)
 
-$(BUILD_DIR)/qwsv/%.o:		common/%.S	; $(do_cc_o_c)
 $(BUILD_DIR)/qwsv/%.o:		QW/server/%.S	; $(do_cc_o_c)
 $(BUILD_DIR)/qwsv/%.o:		QW/common/%.S	; $(do_cc_o_c)
-$(BUILD_DIR)/qwsv/%.o:		common/%.c	; $(do_cc_o_c)
+$(BUILD_DIR)/qwsv/%.o:		common/%.S	; $(do_cc_o_c)
 $(BUILD_DIR)/qwsv/%.o:		QW/server/%.c	; $(do_cc_o_c)
 $(BUILD_DIR)/qwsv/%.o:		QW/common/%.c	; $(do_cc_o_c)
+$(BUILD_DIR)/qwsv/%.o:		common/%.c	; $(do_cc_o_c)
 
 # ----------------------------------------------------------------------------
 # Normal Quake (NQ)