UI of Rename button in Author mode

Done UI of Rename button and pop-out widget.
Fixed transparent bottom for both Rename and Description.
Order descriptions, inputs and units(unfinished)

The descriptions and inputs have been re-ordered alphabetically. The
units haven't.
Order descriptions, inputs and units done

The descriptions, inputs and units have been re-ordered alphabetically.
Merge branch 'master' into jingxian2
Order name, desc, inputs and units in Author done

In AUTHOR mode, the name, descriptions, inputs and units have been
re-ordered alphabetically.
fix indentation and whitespace
Root node selector relocated

The "root" checkbox is now in a individual row between "type" and
"inputs".
Merge branch 'master' into jingxian2
removing workaround for bug 2414
Merge branch 'master' into avaneesh
renaming/resaving  problem in author mode
renaming problem , clone method added for copying parameter object
reusing save problem for save As
Merge branch 'master' into pradeep