Minor updates:

- FunctionCore:
  - Do not auto create empty channel list
- SelectCore:
  - Rename method: SetDebugLevel() -> LogLevel()
- SelectableCore:
  - Do not auto create empty handles list

SelectableCore.h

@@ -142,7 +142,7 @@ public:
     ~CSelect();
 
     // Parameters
-    bool SetDebugLevel( EDebugLevel pDebugLevel );
+    bool SetLogLevel( EDebugLevel pDebugLevel );
 
     // Manage FDs
     void Clear();