NXP-15561: move ExternalGadgetsActionBean to nuxeo-opensocial-gadgets
NXP-14805: prevent sending events on detached task document
NXP-15566: Reload seam factory to fix activate/deactivate button dev mode refresh in admin center
NXP-15566: Add restart server panel as admincenter header
Merge branch 'master' into fix-NXP-14805-es-taskDocument-detached
NXP-14805: prevent sending events on detached task document