Standardize "Running Support" to "Run Support"

We should keep consistent grammar across our policy titles. Maybe
"running" is more natural? If so, let's change all of our policies at
once to that style.

www/policies/running-support.spt → www/policies/run-support.spt

@@ -1,4 +1,4 @@
-nav_title="Running Support"
+nav_title="Run Support"
 [---]
 [---] text/html via markdown
 
@@ -10,7 +10,7 @@ Gittip uses [FreshDesk](http://gittip.freshdesk.com/) for managing support queri
 
 ### Existing tickets
 
-* View tickets that are *assigned to you*, and see if any can be responded to, closed, or otherwise have action taken on them. 
+* View tickets that are *assigned to you*, and see if any can be responded to, closed, or otherwise have action taken on them.
 * View all [unassigned tickets](http://gittip.freshdesk.com/helpdesk/tickets/filter/new), which will usually be new arrivals.
 * Close or merge any tickets which are spam, duplicates, or otherwise can be immediately resolved.
 * If you spot a ticket you can help with, then assign the ticket to yourself. This lets others know you're working on it.