Change all foreach loops in Soy templates to use the for loop syntax

This also updates to a newer version of Closure Rules and fixes a protobuf dep
compile issue.

Full description of the change:

Soy supports 2 kinds of loops:
* foreach- for iterating over items in a collection, e.g.
  {foreach $item in $list}...{/foreach}
* for - for indexed iteration, e.g. {for $i in range(0, 10)}...{/for}

The reason Soy has two different loops is an accident of history; Soy didn’t use
to have a proper grammar for expressions and so the alternate ‘for...range’
syntax was added to make it possible to write indexed loops.  As the grammar has
improved having the two syntaxes is no longer necessary and so we are
eliminating one of them.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=182843207

java/google/registry/ui/soy/registrar/ContactSettings.soy

@@ -30,7 +30,7 @@
   <div class="{css('set')}">
   <h1>Contact settings</h1>
   <table>
-    {foreach $type in $possibleTypesLookup}
+    {for $type in $possibleTypesLookup}
       {if isNonnull($contactsByType[$type[0]])}
         <tr class="{css('kd-settings-pane-section')}">
           <td>
@@ -40,7 +40,7 @@
           </td>
           <td id="{$type[0]}-contacts"
               class="{css('info')} {css('summary')} {css('domain-registrar-contacts')}">
-            {foreach $c in $contactsByType[$type[0]]}
+            {for $c in $contactsByType[$type[0]]}
               {call .contactInfoCompact}
                 {param namePrefix: 'contacts[' + index($c) + '].' /}
                 {param name: $c['name'] /}
@@ -53,10 +53,10 @@
                 {param faxNumber: $c['faxNumber'] /}
               {/call}
               {if (index($c) + 1) % 3 == 0}<br>{/if}
-            {/foreach}
+            {/for}
           </td>
       {/if}
-    {/foreach}
+    {/for}
   </table>
   </div>
 {/template}
@@ -185,11 +185,11 @@
       <label class="{css('setting-label')}">Contact type</label>
     <td class="{css('setting')}">
       <div class="{css('setting-item-list')}">
-        {foreach $type in $possibleTypesLookup}
+        {for $type in $possibleTypesLookup}
           {if $actualTypesLookup[$type[0]]}
             <div>{$type[1]} contact</div>
           {/if}
-        {/foreach}
+        {/for}
       </div>
     </td>
   <tr><td colspan="2"><hr></tr>
@@ -301,7 +301,7 @@
   {@param namePrefix: string}
   {@param actualTypesLookup: map<string, bool>}
   {@param possibleTypesLookup: list<list<string>>}
-  {foreach $type in $possibleTypesLookup}
+  {for $type in $possibleTypesLookup}
     {let $name: $namePrefix + 'type.' + $type[0] /}
     {let $checked: $actualTypesLookup[$type[0]] /}
     <div class="{css('checkbox-with-label')}">
@@ -314,7 +314,7 @@
         <span class="{css('description')}">{$type[2]}</span>
       </label>
     </div>
-  {/foreach}
+  {/for}
 {/template}