LPS-32473 replace ... by StringPool.TRIPLE_PERIOD
LPS-32473 replace "advanced options" by "advanced selection"
LPS-32473 copy from select_site
LPS-32473 copy from asset browser
LPS-32473 support for selecting and saving any site the user can manage
LPS-32473 make method public to reuse it (no logic changes)
LPS-32473 check permissions in the backend
LPS-32473 Fix missing language key
LPS-32473 Forgot to add "callback" to portletURL, are both callback and target parameters needed? configuration.jsp only passes in callback?
LPS-32473 Source formatting
LPS-32473 Lang keys
LPS-32400 Source formatting