[MINOR] add the "initial weight" to the server struct.

This one will be used when changing weights.
diff --git a/include/types/server.h b/include/types/server.h
index d7e6da0..f6a7171 100644
--- a/include/types/server.h
+++ b/include/types/server.h
@@ -122,7 +122,7 @@
 	int curfd;				/* file desc used for current test, or -1 if not in test */
 
 	char *id;				/* just for identification */
-	unsigned uweight, eweight;		/* user-specified weight, and effective weight */
+	unsigned iweight,uweight, eweight;	/* initial weight, user-specified weight, and effective weight */
 	unsigned wscore;			/* weight score, used during srv map computation */
 	unsigned prev_eweight;			/* eweight before last change */
 	unsigned rweight;			/* remainer of weight in the current LB tree */
diff --git a/src/cfgparse.c b/src/cfgparse.c
index 4eade38..428d7b9 100644
--- a/src/cfgparse.c
+++ b/src/cfgparse.c
@@ -2538,7 +2538,7 @@
 		newsrv->rise = DEF_RISETIME;
 		newsrv->fall = DEF_FALLTIME;
 		newsrv->health = newsrv->rise; /* up, but will fall down at first failure */
-		newsrv->uweight = 1;
+		newsrv->uweight = newsrv->iweight = 1;
 		newsrv->maxqueue = 0;
 		newsrv->slowstart = 0;
 
@@ -2695,7 +2695,7 @@
 					err_code |= ERR_ALERT | ERR_FATAL;
 					goto out;
 				}
-				newsrv->uweight = w;
+				newsrv->uweight = newsrv->iweight = w;
 				cur_arg += 2;
 			}
 			else if (!strcmp(args[cur_arg], "minconn")) {