Renamed bot_developer to botDeveloper to prevent symbol clash.

qagame*.so has a variable named this too, and this confuses the Linux
 dynamic loader since we're not using -fvisibility=hidden.

 Fixes Bugzilla #3944.

code/botlib/be_aas_sample.c

@@ -150,7 +150,7 @@ aas_link_t *AAS_AllocAASLink(void)
 	if (!link)
 	{
 #ifndef BSPC
-		if (bot_developer)
+		if (botDeveloper)
 #endif
 		{
 			botimport.Print(PRT_FATAL, "empty aas link heap\n");