42d58f17bf
1. if a hostfile is given, then add the nodes found in that hostfile to our list - i.e., the resulting allocation contains the UNION of all nodes specified in hostfiles from across all apps. 2. any app that has no hostfile but has a dash-host, will have those nodes added to the list 3. any app that fails to have a hostfile or a dash-host will be given the default hostfile, if we have it Each app will subsequently be filtered using their hostfile and/or dash-host data to ensure that the app only has access to the hosts it specified Note that any relative node syntax found in the hostfiles or dash-host data will generate an error in this scenario, so only non-relative syntax can be present This commit was SVN r27223.