fix memmove my implementation
fread fix
fopen fix
bss fix
Correct abs definition
Use memcmp function suggested by gbl08ma
Updated COPYING

The project is no longer in a single src directory
Merge pull request #17 from Forty-Bot/patch-1

Update license wording to refer to all sources.
Merge pull request #16 from ComputerNerd/initalFixes

Various bug fixes: stdio, memove, memcmp, abs and linker script.
Merge pull request #15 from Forty-Bot/master

Fix some bugs that crept into the build system.