[Misc] User Profile: The link to see the activity stream of a wiki is now generated by javascript, because it can not work without javascript.
Merge pull request #254 from gdelhumeau/misc-1

[Misc] User Profile: The link to see the activity stream of a wiki is no...
XWIKI-9857: Space Index Macro always lists hidden documents and lists translations several times
XWIKI-9780: The user XWiki.Admin appears in a subwiki's "Existing users" list.

* Moving AdminGroup and AllGroup to xwiki-enterprise-ui-admin-user.
XWIKI-9822: Failure to migrate to 5.3 database older than 4.0 when it contains wiki descriptors
XWIKI-7970: 'Show activity' link for a joined workspace does not work in the Workspaces section when JavaScript is turned off.
Merge branch 'master' of github.com:xwiki/xwiki-platform
[misc] Add documentation
XWIKI-9860: XAR exported with wikistream don't contains hidden and minoredit element anymore if they have the default value
XWIKI-9860: XAR exported with wikistream don't contains hidden and minoredit element anymore if they have the default value
* fix test