Update list of Clojure JIRA users
Update preferred patches for Apr 15, 2013
Several enhancements to report generation

Add "Fix Version" to the top tickets by weighted vote reports, to make
it easier to see which of those tickets have already been marked for
the next release.

Replace approval "OK" with "Ok" so it matches what is actually in the
ticket data.

Change the part of the needs work report that lists tickets needing
work that have no prescreened patches, so it does not repeat tickets
from the previous list that are marked for Release 1.6.