Compiler warnings fixes.

pcbnew/queue.cpp

@@ -105,8 +105,9 @@ int SetQueue (int r,int c,int side,int d,int a,int r2,int c2 )
 		0 si defaut allocation Memoire
 */
 {
-struct PcbQueue *p, *q, *t;
-int i, j;
+    struct PcbQueue *p, *q, *t;
+    int i, j;
+    j = 0; // gcc warning fix
 
 	if( (p = Save) != NULL ) /* try free list first */
 		{

polygon/PolyLine.cpp

@@ -1431,6 +1431,7 @@ void CPolyLine::AddContourForPadClearance( int type, int x, int y, int w,
 			double r = max(w/2 + fill_clearance, hole_w/2 + hole_clearance);
 			double start_angle = asin( spoke_w/(2.0*r) );
 			double th1, th2, corner_x, corner_y;
+			th1 = th2 = corner_x = corner_y = 0; // gcc warning fix
 			for( int i=0; i<4; i++ )
 			{
 				if( i == 0 )