Fixed a few bugs in the tiling

Changes

--- src/events.c 4f8eba65330055e194975a9b4da093f1b460895a

+++ src/events.c 2e191476aa83ed259b95026f1f6535ad0b653a9e

@@ -57,19 +57,19 @@

-    focus_win(wm, ws->win_sel->next);

+    if (ws->win_sel) focus_win(wm, ws->win_sel->next);

-    focus_win(wm, ws->win_sel->prev);

+    if (ws->win_sel) focus_win(wm, ws->win_sel->prev);

-    move_win_split(wm, ws, ws->win_split->next);

+    if (ws->win_split) move_win_split(wm, ws, ws->win_split->next);

-    move_win_split(wm, ws, ws->win_split->prev);

+    if (ws->win_split) move_win_split(wm, ws, ws->win_split->prev);

--- src/window.c 4f8eba65330055e194975a9b4da093f1b460895a

+++ src/window.c 2e191476aa83ed259b95026f1f6535ad0b653a9e

@@ -39,9 +39,6 @@

-  if (w->next != NULL)

-    delete_win(w->next);

-

--- src/workspace.c 4f8eba65330055e194975a9b4da093f1b460895a

+++ src/workspace.c 2e191476aa83ed259b95026f1f6535ad0b653a9e

@@ -36,12 +36,15 @@

+  win_t *t;

-  delete_win(w->win_head);

+  for (t = w->win_head; t; t = t->next)

+    delete_win(t);

+

@@ -120,6 +123,9 @@

+  

+  if (new_head == old_head) 

+    return;