/etc/network/if-up.d/upstart emits static-network-up too early

I came across this when debugging bug 1352255.
as implemented right now (trusty and utopic) the 'static-network-up' event is emitted when each 'auto' interface has had *an* address configured, as opposed to *all* addresses configured.

Heres why:
 ifupdown calls runparts on /etc/network/if-up.d/ after each stanza for a network inteface, rather than once after *all* stanzas are executed.

The result is that things that were waiting on 'static-network-up', expecting that would provide them with expected networking are not actually guaranteed anything other than the first stanza for each interface.

(note also that this happens to cause strange behavior in bug 1352255).

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: ifupdown 0.7.47.2ubuntu4.1
ProcVersionSignature: Ubuntu 3.13.0-34.60-generic 3.13.11.4
Uname: Linux 3.13.0-34-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
Date: Thu Oct 9 12:37:10 2014
InstallationDate: Installed on 2011-12-06 (1037 days ago)
InstallationMedia: Ubuntu-Server 11.10 "Oneiric Ocelot" - Release amd64 (20111011)
ProcEnviron:
 TERM=screen-bce
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: ifupdown
UpgradeStatus: Upgraded to trusty on 2014-08-01 (69 days ago)