R1:d06788c1e590

Move Workboards to PHUI

Summary: This is just renaming to PHUI (I like shorter text :)

Test Plan: reload workboard examples page, seems to not fatal and looks very appealing

Reviewers: epriestley

Reviewed By: epriestley

CC: Korvin, aran

Differential Revision: https://secure.phabricator.com/D6904