html: clarify type of button elements - make it clear if we really want "submit"

This might fix some real problems.

kallithea/public/js/base.js

@@ -677,6 +677,7 b' function _comment_div_append_form($comme'
                 'class': 'btn-group'
             }).append(
                 $('<button>', {
+                    'type': 'button',
                     'class': 'btn btn-default btn-xs',
                     text: _TM['Retry']
                 }).click(function() {
@@ -685,6 +686,7 b' function _comment_div_append_form($comme'
                     ajaxPOST(AJAX_COMMENT_URL, postData, success, failure);
                 }),
                 $('<button>', {
+                    'type': 'button',
                     'class': 'btn btn-default btn-xs',
                     text: _TM['Cancel']
                 }).click(function() {

kallithea/templates/admin/user_groups/user_group_edit_perms.html

@@ -67,7 +67,7 b''
                             %endif
                         </td>
                         <td>
-                            <button class="btn btn-default btn-xs" onclick="ajaxActionRevoke(${g2p.user_group.users_group_id}, 'user_group', '${'id%s'%id(g2p.user_group.users_group_name)}', '${g2p.user_group.users_group_name}')">
+                            <button type="button" class="btn btn-default btn-xs" onclick="ajaxActionRevoke(${g2p.user_group.users_group_id}, 'user_group', '${'id%s'%id(g2p.user_group.users_group_name)}', '${g2p.user_group.users_group_name}')">
                             <i class="icon-minus-circled"></i>${_('Revoke')}
                             </button>
                         </td>

kallithea/templates/changeset/diff_block.html

@@ -4,7 +4,7 b''
                        cs_repo_name, cs_ref_name, cs_ref_type, cs_rev,
                        file_diff_data)">
 <div class="diff-collapse">
-    <button data-target="${'diff-container-%s' % (id(file_diff_data))}" class="diff-collapse-button btn btn-link btn-sm">&uarr; ${_('Collapse Diff')} &uarr;</button>
+    <button type='button', data-target="${'diff-container-%s' % (id(file_diff_data))}" class="diff-collapse-button btn btn-link btn-sm">&uarr; ${_('Collapse Diff')} &uarr;</button>
 </div>
 %for id_fid, url_fid, op, a_filename, cs_filename, diff, stats in file_diff_data:
     ${diff_block_diffblock(id_fid, url_fid, op, diff,

kallithea/templates/data_table/_dt_elements.html

@@ -70,7 +70,7 b''
         <i class="icon-pencil"></i>${_('Edit')}
       </a>
       ${webutils.form(webutils.url('delete_repo', repo_name=repo_name))}
-        <button name="${'remove_%s' % repo_name}" class="btn btn-default btn-xs"
+        <button type="submit" name="${'remove_%s' % repo_name}" class="btn btn-default btn-xs"
             onclick="return confirm('${_('Confirm to delete this repository: %s') % repo_name}');">
           <i class="icon-trashcan"></i>${_('Delete')}
         </button>
@@ -92,7 +92,7 b''
      <i class="icon-pencil"></i>${_('Edit')}
    </a>
   ${webutils.form(webutils.url('delete_user', id=user_id))}
-    <button id="${'remove_user_%s' % user_id}" name="${'remove_user_%s' % repo_name}" class="btn btn-default btn-xs" title="${_('Delete')}"
+    <button type="submit" id="${'remove_user_%s' % user_id}" name="${'remove_user_%s' % repo_name}" class="btn btn-default btn-xs" title="${_('Delete')}"
         onclick="return confirm('${_('Confirm to delete this user: %s') % username}');">
       <i class="icon-trashcan"></i>${_('Delete')}
     </button>
@@ -104,7 +104,7 b''
       <i class="icon-pencil"></i>${_('Edit')}
     </a>
     ${webutils.form(webutils.url('delete_users_group', id=user_group_id))}
-      <button id="${'remove_group_%s' % user_group_id}" name="${'remove_user_%s' % repo_name}" class="btn btn-default btn-xs" title="${_('Delete')}"
+      <button type="submit" id="${'remove_group_%s' % user_group_id}" name="${'remove_user_%s' % repo_name}" class="btn btn-default btn-xs" title="${_('Delete')}"
           onclick="return confirm('${_('Confirm to delete this user group: %s') % user_group_name}');">
         <i class="icon-trashcan"></i>${_('Delete')}
       </button>
@@ -123,7 +123,7 b''
       <i class="icon-pencil"></i>${_('Edit')}
     </a>
     ${webutils.form(webutils.url('delete_repo_group', group_name=repo_group_name))}
-      <button id="${'remove_%s' % repo_group_name}" name="${'remove_%s' % repo_group_name}" class="btn btn-default btn-xs" title="${_('Delete')}"
+      <button type="submit" id="${'remove_%s' % repo_group_name}" name="${'remove_%s' % repo_group_name}" class="btn btn-default btn-xs" title="${_('Delete')}"
           onclick="return confirm('${ungettext('Confirm to delete this group: %s with %s repository','Confirm to delete this group: %s with %s repositories',gr_count) % (repo_group_name, gr_count)}')">
         <i class="icon-trashcan"></i>${_('Delete')}
       </button>