AdUnit: Add AdUnit export activity
Azure: Fix diagnostics quota size
AdUnit Exporter: DeliveryNetwork activities
 * Add assembly for network independent delivery network activities
 * Move DeliveryNetworkDesignation out of DynamicAllocation

TODO: Add exported ad unit to measure registry
Merge branch 'master' of https://github.com/RareCrowds/OpenAdStack
Merge branch 'master' into AdUnitExport