Fix for log file name with datestamp checkbox on Comm Prefs Panel never enabling, and thus being intangible.

Also, enable local chat loggings by default.

indra/newview/llprefsim.cpp

@@ -53,8 +53,6 @@
 #include "rlvhandler.h"
 // [/RLVa:KB]
 
-class AIDirPicker;
-
 class LLPrefsIMImpl : public LLPanel
 {
 public:
@@ -269,6 +267,7 @@ void LLPrefsIMImpl::setPersonalInfo(const std::string& visibility, bool im_via_e
 	childEnable("log_chat_timestamp");
 	childEnable("log_chat_IM");
 	childEnable("log_date_timestamp");
+	childEnable("logfile_name_datestamp");
 	
 	//RN: get wide string so replace char can work (requires fixed-width encoding)
 	LLWString busy_response = utf8str_to_wstring( gSavedPerAccountSettings.getString("BusyModeResponse") );