added pinterest plugin

counting via the php is not implemented! just for embedding a Pin It
button.
separate pinterest icon files
Whoops, didn't update with the new size.
Adding Pinterest service.
Merge branch 'pinterest' of github.com:dustMason/SocialCount into dustMason-pinterest
Who checked this junk into the repo ಠ_ಠ (hint: it was me)
Add pinterest to examples
Increment version, add grunt dependencies to package.json
Fixes #41
Only show pinterest button when JS is enabled.
Include pinterest icon.
Upgraded the grunt file.
Merge branch 'master' of github.com:filamentgroup/SocialCount