change:support load content for launcher
change:finish simplest loading favorites feature

Change-Id: Ic8fd60973a06b2a2df8bd309e53034d20a906714
change:Avoid load favorites many times

Change-Id: If90d955b92dc5a17b8a0c4efa85cf748305c7fa9
change:add iteminfo class

Change-Id: I4b87fa231856a0567acc32bb107bdbd2cf5ccda0
change:clear logs
change:loadWorkspace could make shorcutInfo for favorites

Change-Id: Ifcb823ebe36db94625273e03f1de0d5bf54acd4d