Fix unikernel generation with gcc 4.8.
release 0.9.2
make Evtchn use a little safer (even though it's currently a noop), since it should be initialized before the runloop in case devices register anything in the library initializers
tweak CHANGES
Mirage provides package mirage AND xenctrl, uninstall both before a new installation.
Add an option to memset the pages to zero after alloc.
Make Gnt.grant_table_index an int instead of an int32.
Updated Netif to reflect the changes in Net.Manager.
Cosmetics.
Updated Io_page, Netif, improved page_stubs.c.
Cometics: deleted whitespaces and tabs.
Io_page.pages now allocate n block of one pages instead of allocating one block of n pages and slitting it.
Console.log_s now returns unit, adapted Netif to those changes as well as gntref being now an int.
Updated CHANGES.
zero out the Netif rings on allocation
Use CAMLparam/CAMLreturn when doing caml_failwith.
Reverted Console.{log_s,write_all}.
Io_page: fixed the UNIX backend as well.
Netif/UNIX: For some reason, get_while does block forever.