Fix building with Clang 3.0.
Switch back to std=c1x to fix building with Clang 3.0.
Add stdnoreturn.h header which Clang 3.0 does not include.
Fix lack of _Noreturn support in Clang 3.0.
Ignore ctags tags file.
Add sys_yield() by adding 'fake' interrupt support to SYSCALLs.
Update copyright header to 2014.
Add a start on the sys_exit() implementation.
Fix initial thread state.
Insert line between closing brackets and opening braces.
Add registers/stack trace to panic() output.
Fix building with yasm.
Update idt.c naming to matching gdt.c.
Update TODO list.
Start tidying the thread/proc/sched code.
Add initial reference counting code.