Also add a GetManifest method to avoid code duplication.

The init script for Dropbear will now convert OpenSSH format
host keys to the Dropbear format if they are found at startup.

/etc/ssh/ssh_host_rsa_key -> /etc/dropbear/dropbear_rsa_host_key
/etc/ssh/ssh_host_dsa_key -> /etc/dropbear/dropbear_dss_host_key

* Most of the changes in GeniCM are simple reorganizations to allow me
  to call into the code from the GeniCMV2 module. This is to avoid
  code duplication as much as possible. Eventually, I will have to
  duplicate the code, but for the moment this works okay.

* I am ignoring the slice_urn argument for now. Will add that later.

* See protogeni/test/version2 for the version two test cases.

boolean functions that say where a value is a GeniResponse.

10K HZ kernel.

Don't look up protocol number for TCP (getprotobyname).  (Likely) due to some
strange threading issue, it can hang.  Since this number has been the same
since the beginning of Internet time and will continue to be the same til the
heat death of the universe, there really isn't much reason for a dynamic
lookup.  Instead, we just let the kernel choose.

Proliferate the use of lib_lock a bit more.  For the stated purpose of
protecting libc memory allocation, there were some questionable areas that
I have added locking to.  This really shouldn't be needed anymore, but til
we can shed our ancient disk images, the code remains.

Instead, grab the current Emulab uids/gids, grab the current group/passwd
files and their shadow counterparts, remove any emulab u/gids from the
loaded instance of the current files, then push any new/changed uid/gids
into the master files in $ETCDIR.  Also, we remove accounts from the
master files if they no longer appear in the current files.  Finally, we
strip deleted uids from any groups they might appear in (!).

Note that this also rearranges the order in which os_account_cleanup is
called by rc.accounts; now it comes before the passwd and group dbs in
/var/emulab/db are wiped.

testing. Now to actually write some code. Tomorrow.

Change location sitevars to general/default_* rather than protogeni/default_* as these may be more widely applicable than just Protogeni code.

Add routine to do RenewSliver() on all outstanding slivers.

(i.e., if we're in a straight chroot that has no special files munged into
it).

not falling back to wget mode. Need to do this differently, soon.

Maybe this should be RenewSlice instead? No matter, it is temporary; I
think it will eventually be replaced with the API call that processes
the manifest before StartSliver() is called.

Added owner_urn and target_urn elements to credentials help out the unfortunate ActionScript users...

can't do this on vhosts running a different distro/version from the guest.

whatever API call is used to process the manifest before startsliver.

openvz.

Slices will now get terminated when the expiration time is reached.

Added support for specifying a link with more than 2 interfaces. assign would automatically treat this as a LAN.