Update to 2.24

Changelog:
Port m68k-atari-mint to latest binutils
Updated cross/freemint-binutils to 2.24
Update to 20131104

* Set LICENSE

Changelog:
* Build mechanism has changed.
* Better support for 68020+
Update to 20131219

Changelog:
* Improve multibyte string handling
* Improve umask, towupper/towlower, readdir, scandir, and nanosleep
Updated cross/freemint-ldg to 20131104
Updated cross/freemint-mintlib to 20131219