changelog
    
    
    - Fri, 06 Dec 2013 21:13:01 +0200
 
    - by Santeri Piippo <crimsondusk64@gmail.com> [Fri, 06 Dec 2013 21:13:01 +0200] rev 546
 
    - - re-added the external programs to the toolbar
 
    - Fri, 06 Dec 2013 21:09:23 +0200
 
    - by Santeri Piippo <crimsondusk64@gmail.com> [Fri, 06 Dec 2013 21:09:23 +0200] rev 545
 
    - updated README.md with a mention of the ring drawing
 
    - Fri, 06 Dec 2013 21:06:48 +0200
 
    - by Santeri Piippo <crimsondusk64@gmail.com> [Fri, 06 Dec 2013 21:06:48 +0200] rev 544
 
    - minor cleanup
 
    - Fri, 06 Dec 2013 20:54:34 +0200
 
    - by Santeri Piippo <crimsondusk64@gmail.com> [Fri, 06 Dec 2013 20:54:34 +0200] rev 543
 
    - - added build_shared to .gitignore
 
    - Fri, 06 Dec 2013 20:53:36 +0200
 
    - by Santeri Piippo <crimsondusk64@gmail.com> [Fri, 06 Dec 2013 20:53:36 +0200] rev 542
 
    - - Improved coordinate rounding, replaced the hack with a proper implementation, now rounds properly and works on subfiles as well
 
    - Fri, 06 Dec 2013 00:29:44 +0200
 
    - by Santeri Piippo <crimsondusk64@gmail.com> [Fri, 06 Dec 2013 00:29:44 +0200] rev 541
 
    - - Renamed common.h to main.h, split the PROPERTY macro and supporting macros to property.h
 
    - Thu, 05 Dec 2013 23:42:39 +0200
 
    - by Santeri Piippo <crimsondusk64@gmail.com> [Thu, 05 Dec 2013 23:42:39 +0200] rev 540
 
    - - Changed the callback parm of PROPERTY to a stock/custom write method argument.
 
    - Thu, 05 Dec 2013 23:20:50 +0200
 
    - by Santeri Piippo <crimsondusk64@gmail.com> [Thu, 05 Dec 2013 23:20:50 +0200] rev 539
 
    - - upgraded the PROPERTY macro, resulting in a major code refactor