1. Perform zip of content in communication threads, reduce load on main thread 2. Optionally insert object/hierarchy data in returned html pages 3. Specify max-age=3600 fo js/css files, allow optional zipping of these files

Signed-off-by: Bertrand Bellenot <bertrand.bellenot@cern.ch>
jsroot: start with v 3.2, use embedded in html page object data

Signed-off-by: Bertrand Bellenot <bertrand.bellenot@cern.ch>
jsroot: new html files for THttpServer with objects embedding

Signed-off-by: Bertrand Bellenot <bertrand.bellenot@cern.ch>