Check select-all, filtered total, deposit slip layout fixes

- Add select-all checkbox to checks table header; checks/unchecks all
  visible (filtered) rows; supports indeterminate state
- Add summary bar below checks toolbar showing count and total amount
  of filtered checks
- Deposit slip: output to full 8.5x11 letter page for trimming
- Deposit slip: remove beige left strip fill (white background)
- Deposit slip: remove vertical separator between depositor/bank info
- Deposit slip: stack bank info below account info instead of side-by-side
- Deposit slip: lower date underline position
- Deposit slip left strip: flip text orientation to read tilt-left
  (rotate 90 instead of -90; reposition all strip element anchors)
- Deposit slip left strip: center MICR and labels in strip width
- Deposit slip total: include decimal point in rotated digit amount

public/index.html

@@ -45,11 +45,13 @@
     </div>
   </div>
 
+  <div id="checks-summary" class="checks-summary"></div>
+
   <div class="table-wrap">
     <table id="checks-table">
       <thead>
         <tr>
-          <th class="col-select"></th>
+          <th class="col-select"><input type="checkbox" id="select-all-checks" title="Select all"></th>
           <th class="col-no sortable" data-col="check_no"># <span class="sort-indicator"></span></th>
           <th class="col-date sortable" data-col="check_date">Date <span class="sort-indicator"></span></th>
           <th class="col-payee sortable" data-col="payee">Payee <span class="sort-indicator"></span></th>