Get rid of `edit-ref` on `fr:section` and `fr:grid`

[ebruchez]

annotate.xpl adds edit-ref which is calculated to point to data.

• fr:section
  • doesn't use the value and uses to determine if in edit mode ($editable)
  • determines
  • $fb-can-do-classes
  • xxf:xforms11-switch="{$editable}
  • .xxforms-animate
• fr:grid
  • uses the value
  • determines
  • fbf:gridCanDoClasses
  • xxf:control="true" on xh:th
  • <xsl:apply-templates select="*" mode="grid-content"/> (unclear)
  • fr-tr id
  • $fb-selected-avt
  • value points via $grid to $control
    • fbf:hasEditor($control, ''static-itemset'')

It would be good if fr:grid didn't use the value. This is only used to place .fb-itemset on .fr-grid-content. Could we find another way? Could this be done in the XSLT template rather than in XForms?

Once this is done, we could get rid of edit-ref and just use fr:is-design-time().

[ebruchez]

• [ ] fr:section uses fr:is-design-time()
• [ ] solution for .fb-itemset
• [ ] fr:grid uses fr:is-design-time()
• [ ] remove insertion/updating/removal of edit-ref