Fix Available tab sort order and support popularity outside 0..1 range

core/src/main/java/hudson/PluginManager.java

@@ -136,6 +136,7 @@ import java.util.HashSet;
 import java.util.Iterator;
 import java.util.LinkedHashSet;
 import java.util.List;
+import java.util.Locale;
 import java.util.Map;
 import java.util.ServiceLoader;
 import java.util.Set;
@@ -2240,7 +2241,7 @@ public abstract class PluginManager extends AbstractModelObject implements OnMas
 
     @Restricted(DoNotUse.class)
     public String unscientific(double d) {
-        return String.format("%.4f", d);
+        return String.format(Locale.US, "%15.4f", d);
     }
 
     @Override

core/src/main/resources/hudson/PluginManager/table.jelly

@@ -63,7 +63,7 @@ THE SOFTWARE.
           <table id="plugins" class="sortable pane bigtable stripped-odd">
             <tr>
               <l:isAdmin>
-                <th initialSortDir="${isUpdates?null:'down'}"
+                <th initialSortDir="${isUpdates?null:'up'}"
                     tooltip="${%Check to install the plugin}"
                     width="32">${%Install}</th>
               </l:isAdmin>