fix for module caching issues with rexploit

git-svn-id: file:///home/svn/incoming/trunk@3554 4d416f70-5f16-0410-b530-b9f4589650da

lib/msf/core/module_manager.rb

@@ -535,6 +535,8 @@ class ModuleManager < ModuleSet
 	# Synchronizes the module cache information 
 	#
 	def update_module_cache_info(fullname, modinfo)
+		return if (modinfo and modinfo['noup'] == true)
+
 		if (@modcache)
 			if (fullname)
 				@modcache.add_group(fullname)

lib/msf/core/payload_set.rb

@@ -74,7 +74,10 @@ class PayloadSet < ModuleSet
 		self.each_key { |key|
 			manager.delete(key)
 		}
-		self.clear
+
+		self.delete_if { |k, v|
+			v != SymbolicModule
+		}
 
 		# Recalculate single payloads
 		_singles.each_pair { |name, op|