Formatting for syscall.c
Merge branch 'master' of github.com:y88huang/CS350-F13
Merge branch 'master' of github.com:y88huang/CS350-F13
Merge branch 'master' of github.com:y88huang/CS350-F13
Fixed exception handling for waitpid and fork. Debugged ftable.
Same as previous commit.
Merge branch 'master' of github.com:y88huang/CS350-F13

Conflicts:
	os161-1.99/kern/syscall/ftable.c
Fixed PID functions. Forktest now working/
Merge branch 'master' of github.com:y88huang/CS350-F13
waitpid