Fix various compiler warnings throughout the code
Mostly signed/unsigned and typecasting issues
Taken from http://sourceforge.net/tracker/index.php?func=detail&aid=1811517&group_id=68956&atid=522957
diff --git a/sgsnemu/cmdline.ggo b/sgsnemu/cmdline.ggo
index a000748..0c1b06c 100644
--- a/sgsnemu/cmdline.ggo
+++ b/sgsnemu/cmdline.ggo
@@ -40,8 +40,8 @@
option "ipdown" - "Script to run after link-down" string no
option "pinghost" - "Ping remote host" string no
-option "pingrate" - "Number of ping req per second" int default="1" no
-option "pingsize" - "Number of ping data bytes" int default="56" no
-option "pingcount" - "Number of ping req to send" int default="0" no
+option "pingrate" - "Number of ping req per second" unsigned int default="1" no
+option "pingsize" - "Number of ping data bytes" unsigned int default="56" no
+option "pingcount" - "Number of ping req to send" unsigned int default="0" no
option "pingquiet" - "Do not print ping packet info" flag off