Description of problem:
When the publishing destinations defined in the
com.arsdigita.cms.publishToFile.Initializer section of enterprise.init are
declared as "shared", QueueManager.queue should queue tasks on the first host
listed in the com.arsdigita.web.Initializer section. Instead, it does not queue
tasks at all.

Version-Release number of selected component (if applicable):
6.0 and dev

How reproducible:
always

Steps to Reproduce:
1. Enable and configure P2FS. Change the destinations parameter in the
com.arsdigita.cms.publishToFile.Initializer section so that the publishing
destinations are declared as "shared" (third list element).

2. Publish or unpublish an item.

3. Observe that publish_to_fs_queue remains empty.
    
Additional info:
The simple fix can be found in changelist 36800. (Set lastIndex to 1 instead of 0.)