included global_defs.h into course_os.img
Very basic bump pointer memory manager
updating dev with master
update with master
moved libc to klibc as recommended
forgot to move header to klib as well
print f works, call using os_printf

now everyone can start debugging
merged printf function from klibc
modified bump pointer allocation
merged mmap.h file to consolidate PIC addresses (and some useful macros)
Merge with dev
Merged memory_manangement branch