Merge "add notice about compatiblity with N Preview (bug:27830549) improve...
Merge "add notice about compatiblity with N Preview (bug:27830549) improve linux 32-bit library information (bug:27962189), add a note about JDK 8 compatibility on Mac, and a few other edits to installation guide and system reqs. am: d69b7276 am: 1b302089 am: 663ad9cb" into nyc-dev