Added ability to to show week numbers.
Added container option

The container option allows you to specify a DOM node to
display the callendar in. See examples container.html and
bound-container.html.
updated README for container option
Add container option.
Merge branch 'weeknumbers' of https://github.com/gertsonderby/Pikaday into gertsonderby-weeknumbers
Styled week numbers smaller and gray, removed week header, added example (calendars.html).
Merge branch 'weeknumbers' of https://github.com/gertsonderby/Pikaday into gertsonderby-weeknumbers
Merge #147: Added ability to to show week numbers
Replace data URIs with font arrows.

data-uris violate the CSP style-src: 'self'.
Merge pull request #158 from graingert/patch-1

Replace data URIs with font arrows.
added missing parenthesis
Merge pull request #164 from benfoxall/patch-1

Readme tweak - missing ")"