Issue #1186 - Change names that appear in the custom action

installer/src/installer-lib/custom-i18n.h

 /**
  * \file custom-i18n.h
  */
 
 #ifndef CUSTOM_I18N_H
 #define CUSTOM_I18N_H
 
 #include <database.h>
 
 //-------------------------------------------------------
 // Message box text
 //-------------------------------------------------------
 /**
  * Accessor to localizable content for custom actions.
  *
  * This class requires that the MSI contain a custom table named "AbpUIText" in the MSI database.
  * The WiX definition of that table is in the file "custom_i18n.wxi".
  * Each custom action has the responsibility for defining its own rows within this table.
  */
-class custom_message_text
+class CustomMessageText
 {
   Database & db ;
   const std::wstring component ;
 
 public:
-  custom_message_text( Database & db, const std::wstring component )
+  CustomMessageText( Database & db, const std::wstring component )
     : db( db ), component( component )
   {}
 
   std::wstring text( const std::wstring id )
   {
     try {
       View v( db, L"SELECT `content` FROM `AbpUIText` WHERE `component`=? and `id`=?" ) ;
       Record arg( 2 ) ;
       arg.assign_string( 1, component ) ;
       arg.assign_string( 2, id.c_str() ) ;
       Record r( v.first( arg ) ) ;
       return r.value_string( 1 ) ;
     }
     catch( ... )
     {
       return L" " ;
     }
   }
 } ;
 
 #endif