Added SortExpressionDeserializer

Change-Id: I8986394c6b4c726a2adc2138b29e72750a9d42b4
Get rid off clutter comments

Change-Id: I49f8ef8b4c31aa8719e6053bf09a58a30a548d36
Added DescriptionRoundtripTest

Change-Id: Ie0a900df3a4397d1db25bad2e49a1a84c06fa86a
Remove dead links

Change-Id: I7f60f7435706491541028bb7031eb16da7866bbe
Update INSTALL file

Change-Id: Ie1e29ed9d18e517018d999b4d658a018bf28c9c1
Imrpoved documentation for SortExpression

Change-Id: Ieca50236226d09bfc266cffd7f5a4130b020a01b