Implement at least linux/x86 and linux/amd64 syscall map

[XVilka]

Syscalls are missing from the linux maps. This tasks is tedious and hard to automate: http://stackoverflow.com/questions/6604007/how-can-i-get-a-list-of-linux-system-calls-and-number-of-args-they-take-automatic

Reply 1: We need to resolve the syscall arg types.. Maybe parsing strace sources?
Reply 2: This has been delayed until 0.9
Reply 3: The current version of hg uses sdb with RPair to get the syscall information. This fixes all bugs like speed and memory usage. We need to implement all those syscall information tables NOW!

[XVilka]

Started implementing in this commit d1459f5

[jvoisin]

This is a duplicate of #1025