Log Message:
Update to 1.3.2

* Update MASTER_SITES.

Changelog:
CHANGES IN FLTK 1.3.2

        - Removed unnecessary drawing calls (STR #2898)
        - Fixed regression in FLTK 1.3.1 for unbundled Mac OS FLTK applications that
          did not appear in dock nor have a menu bar (STR #2890).
        - Fl_Table::clear() now calls table->clear() for consistency. (STR #2889)
        - Fixed Fl_Scroll widget that fails under Mac OS X 10.8 and retina \ 
display (STR #2887).
        - Prevents scrollbars from drawing when widget is sized too small to be \ 
visible (STR #2886).
        - Documented how to make a Mac OS X FLTK application launchable by \ 
dropping files on its icon.
        - Fixed a Mac-specific issue appeared with OS 10.8 (Mountain Lion): long \ 
delay before
        opening when the application is started by dragging a file on the \ 
application icon.
        - Fixed use of PNG image from im-memory data (STR #2884).
        - Added static Fl_RGB_Image::max_size(size_t) to limit the maximum \ 
memory size allowed to
        RGB images (STR #2881).