Add main menu recent files

[Miika Turkia]

> On 14 Feb 2014, at 11:41, Joseph W Joshua <joshua at megvel.me.ke> wrote:
> 
> 
>> On 02/14/2014 12:48 AM, Boris Barbulovski wrote:
>> This patch adds recent files list into main menu.
>> 
>> It adds upto four filenames to the File menu.
> I think it should not list files that fail to parse. What do you think? I could write a
> small patch for this

when compiled with debug option, I would include parse failures, otherwise not.

miika