More std:: style for wxString and wxArrayString...

... Replacing:

Insert => insert
RemoveAt => erase
Remove => erase
IsSameAs => operator == or operator !=
   (but only when second argument was true or default)

src/Shuttle.cpp

@@ -194,7 +194,7 @@ bool Shuttle::TransferEnum( const wxString & Name, int & iValue,
 
          for( int i = 0; i < nChoices; i++ )
          {
-            if( str.IsSameAs( pFirstStr[i] ))
+            if( str == pFirstStr[i] )
             {
                iValue = i;
                break;