collapse debug tabs by default and add ability to (un)collapse debug tab; see #2647

git-svn-id: https://forge.indepnet.net/svn/glpi/branches/0.85-work@20410 35612d4c-9d10-0410-837c-bf9dd1be60d7
[0.85]add missing default picture for user; see #859

git-svn-id: https://forge.indepnet.net/svn/glpi/branches/0.85-work@20411 35612d4c-9d10-0410-837c-bf9dd1be60d7