Added period in French Charts and Graphs i8n string.
Merge pull request #1976 from EricDunsworth/v3.0-charts-i8n-fra

Added period in French Charts and Graphs i8n string.
Corrected Grid System name.
Corrected Grid System name.
Corrected Design guide title, breadcrumb trail and h1. Resolved merge conflicts.
Merge pull request #1988 from pjackson28/master

Correcte dgrid system name, design guide title, breadcrumb trail and h1