NopSocialWidget. Added features.

NopSocialWidget. Version 1.08 - December 08, 2015

+ added support LinkedIn (Share) (from Nop 3.40 and never).
+ added support Pinterest (Pin It button, Follow, Pin, Board, Profile) (from Nop 3.40 and never).
+ added support Instagram (Badges) (from Nop 3.40 and never).