feat(email redesign)

- change grunt to include html partials during assemble
- create a responsive main layout based on the new design
- create html partials for re-usable elements (i.e two column responsive grid, header,footer,fake post job form, action buttons, email title with icons, pph signature etc)
- organize pph css code in files
fix(comment in css)
update(hourlie tile) - make the hourlie title a link
Merge pull request #2 from smich/redesign-emails

feat(email redesign)