WIP my local config changes

This plugin allows you to move clients around in the stack and swap them
with the master. It emulates the behavior off mod+shift+j and mod+shift+k
in Xmonad. movestack(+1) will swap the client with the current focus with
the next client. movestack(-1) will swap the client with the current focus
with the previous client.

gaplessgrid.c

@@ -1,35 +0,0 @@
-void
-gaplessgrid(Monitor *m) {
-	unsigned int n, cols, rows, cn, rn, i, cx, cy, cw, ch;
-	Client *c;
-
-	for(n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++) ;
-	if(n == 0)
-		return;
-
-	/* grid dimensions */
-	for(cols = 0; cols <= n/2; cols++)
-		if(cols*cols >= n)
-			break;
-	if(n == 5) /* set layout against the general calculation: not 1:2:2, but 2:3 */
-		cols = 2;
-	rows = n/cols;
-
-	/* window geometries */
-	cw = cols ? m->ww / cols : m->ww;
-	cn = 0; /* current column number */
-	rn = 0; /* current row number */
-	for(i = 0, c = nexttiled(m->clients); c; i++, c = nexttiled(c->next)) {
-		if(i/rows + 1 > cols - n%cols)
-			rows = n/cols + 1;
-		ch = rows ? m->wh / rows : m->wh;
-		cx = m->wx + cn*cw;
-		cy = m->wy + rn*ch;
-		resize(c, cx, cy, cw - 2 * c->bw, ch - 2 * c->bw, False);
-		rn++;
-		if(rn >= rows) {
-			rn = 0;
-			cn++;
-		}
-	}
-}