V 1.6–Redelivery for e-mail and Facebook share, Legend UI fixes and FTR Panel fixes and fix for Open Street Map

Resolved following GitHub issues:
#8 - More legend are displayed on shared URL
#10 - 511 information shows results for default extent when opened on shared link load for first time
#12 – Sharing options-Facebook
#26 - Resolve the dependency on traffic.esri.com
#38 - Splash screen gets cut off after changing the orientation to landscape mode
#42 - DisplayText for Directions tab is missing from config_server.js
#43 – On geo-location, clear graphics icon gets displayed on directions panel and 511 information is not updated
#44 -  On sharing geo-location/pushpin after route/FTR priority is given to FTR/Route rather that pushpin
#46 - On generating pushpin FTR gets cleared
#47 - GUI issue on NEXUS
#52 - FTR Panel Clears Directions - iPhone

Resolved following additional issue:
- Fixed open street map