Bumping example font sizes to increments of 20

Since dashicons are created on a 20px grid, not a 16px grid, they
should be displayed accordingly so they appear crisp and clean on lower
resolution screens.
Merge branch 'master' into gh-pages
Added email icons, removed camptix as Konstantin wants this separate
added email icons, removed camptix icon
Added email icons, removed camptix icon
Replacing edit and update icons, adding two new email icons

Edit has been replaced with a slightly smaller icon, to fit better with
the adminbar. Update has been flipped so it's now circling clockwise.
Merge branch 'master' into gh-pages
Re-adding the font files, which I somehow managed to delete.
Just kidding… fixing the fonts this time.
Merge branch 'master' into gh-pages
Added sos (unif468), clock (unif 469), phone (unif470), tablet (unif471), desktop (unif472). props @melchoyce
Adding sos, clock, phone, tablet, and desktop icons to the demo page
Merge branch 'master' into gh-pages
Added testimonials icon, props @melchoyce
Adding testimonial icon to demo page
Merge branch 'master' into gh-pages
Semantics - swapping alt attribute date-code on div that receives the icon
Javascript in external file
Scripts in footer
Merge pull request #14 from fdaciuk/pr1_semantics

Swapping alt attribute for data-code because it's more semantic. Props @fdaciuk.