changelog
    
    
    - Tue, 14 May 2013 00:52:20 +0300
 
    - by Santeri Piippo <crimsondusk64@gmail.com> [Tue, 14 May 2013 00:52:20 +0300] rev 195
 
    - Added image overlays, these are offset and scaled photos drawn on top of the part model to help getting part data from pictures.
 
    - Mon, 13 May 2013 19:53:22 +0300
 
    - by Santeri Piippo <crimsondusk64@gmail.com> [Mon, 13 May 2013 19:53:22 +0300] rev 194
 
    - Fixed coordconv3_2 algorithm, plane drawing works on any of the fixed cameras now.
 
    - Mon, 13 May 2013 00:04:54 +0300
 
    - by Santeri Piippo <crimsondusk64@gmail.com> [Mon, 13 May 2013 00:04:54 +0300] rev 193
 
    - Added wireframe mode
 
    - Sun, 12 May 2013 20:21:44 +0300
 
    - by Santeri Piippo <crimsondusk64@gmail.com> [Sun, 12 May 2013 20:21:44 +0300] rev 192
 
    - Split inverting into methods into LDObject and its subclasses, fixed a rather severe memory leak issue (GL display lists weren't being removed properly)
 
    - Sat, 11 May 2013 04:02:13 +0300
 
    - by Santeri Piippo <crimsondusk64@gmail.com> [Sat, 11 May 2013 04:02:13 +0300] rev 191
 
    - Readded BFC red-green view, although determining inversion isn't always correct and it cannot handle CW-certified files...
 
    - Fri, 10 May 2013 21:45:36 +0300
 
    - by Santeri Piippo <crimsondusk64@gmail.com> [Fri, 10 May 2013 21:45:36 +0300] rev 190
 
    - Added tool for replacing coordinate values
 
    - Fri, 10 May 2013 17:39:56 +0300
 
    - by Santeri Piippo <crimsondusk64@gmail.com> [Fri, 10 May 2013 17:39:56 +0300] rev 189
 
    - Rewrote the string class with a simpler version. The old one was more than probably leaking water like a boat with an elephant on board...