SOC-3544 Broken UI when showing more comments

Fix description:
* SetCommentListStatus to show all comments when there are hidden comments.
SOC-3169 Explanation of the registration field doesn't change

Fix description: use class ".btn" instead of "a" tag, so UIForm can update element.
SOC-3439 Space menu disappeared after renaming space

Fix description:
* Get the updated node from its parent to make sure the updated node is not null.
SOC-3458 TemplateRuntimeException when edit name of a space.

Fix description:
* Update the space ID of a renamed space