tasks #7188 Index data in ElasticSearch

This tasks is part of story #7028 Search in wiki pages

This commit allow to index new empty wiki pages from Phpwiki service.
We index metadata like last_update_date, pagename, id

Change-Id: I0458b587b55c92eecd1baaaa20c8585ea0ccfc2a
tasks #7208 Index permissions

This tasks is part of story #7028 Search in wiki pages

A new object Wiki_PermissionsManager is introduced to deal with formatted
wiki page permissions

Change-Id: Ic8d99154db8aaccc2058b9ffdb6734dd1a1ab8bf
Fix request #7232 Improve french help page

Change-Id: I7f9f1b59bb15df973aa41834892b7e49df6fcd6f
tasks #7220 Update wiki page

This tasks is part of story #7028 Search in wiki pages

The content of a new wiki page version is indexed with all data (author, summary, content, date ...)

Change-Id: Ifa70f447141e1a78ceb8ecd08c8c34d4069308ec
tasks #7209: Delete wikipage

Change-Id: I94c24a39d9c8e457c2b089d74844d31e5be50d38
tasks #7219 Catch wiki page permissions changed event

This tasks is part of story #7028 Search in wiki pages

When editing wiki page permissions through the administration panel, an event is raised

Change-Id: Iec02623a088ffea9eea5bd0971d6d4db1db84463
tasks #7225 Update permission on page permissions change

This tasks is part of story #7028 Search in wiki pages

Change-Id: I2b93c1056f65ce0b3258c54d350e71eb3d18d420
Merge commit 'refs/changes/76/2776/4' of ssh://gerrit.tuleap.net:29418/tuleap into tuleap-stable-master

* ssh://gerrit.tuleap.net:29418/tuleap:
  tasks #7225 Update permission on page permissions change
  tasks #7219 Catch wiki page permissions changed event
  tasks #7209: Delete wikipage
  tasks #7220 Update wiki page
  tasks #7208 Index permissions
  tasks #7188 Index data in ElasticSearch

Conflicts:
	src/common/autoload.php

Change-Id: I46978d1771c521c6aeed41a545f1bc1dbc5381f0
Tuleap 7.2.99.54

Change-Id: I7640ba05cd13ba5703605dc9e5aa16ff238ce13b
Merge commit 'refs/changes/77/2777/1' of ssh://gerrit.tuleap.net:29418/tuleap into tuleap-stable-master

* ssh://gerrit.tuleap.net:29418/tuleap:
  Fix request #7232 Improve french help page

Change-Id: Iff89aff7dc678028e65d0867ef9936b281510928
Tuleap 7.2.99.55

Change-Id: I0a347d2488a4e9512741e3542e7f3c3ee4cf1d7b