Made /wol a POST request instead of a GET

Since it does modify state.

* Also fixed a bug where ping did sometimes still write to the
response.

wakeboard

@@ -38,5 +38,5 @@ fi
 # Ensure variable can be read by the get handler
 export WAKEBOARD_TITLE
 
-./bashserv/bashserv.sh -s "./static" -g "./handle_get.sh" -p "$PORT"
+./bashserv/bashserv.sh -s "./static" -g "./handle_get.sh" --post "./handle_post.sh" -p "$PORT"