Now the history is saved encrypted. Please delete all files with "chat*.xml" in your profile folder.
Added new config p3HistoryMgr and interface p3History.
Added new option to limit the count of the saved history items.
Added new simple html optimizer "RsHtml::optimizeHtml" to reduce the size of the html strings.
git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@4623 b45a01b8-16f6-495d-af2f-9b41ad6348cc
