Comment 4 for bug 1284864

Additional fixes pushed:

* limit the bib records list for a metarecord to those with opac-visible copies within the search scope
* MR constituent record count display for also honors search scope
* Improved wording for holds placement -- make it clear that selecting no formats (or langs) is equivalent to allowing any format/lang to fill the hold
* Repaired format icons display for both MR and non-MR holds in the myaccount holds list.
* If no holdable formats exist for a MR hold, disallow the hold.