Add base code for simplified jQuery
Add more functions to `$`

- `attr`
- `closest`
- `each`
- `length`
- `replaceWith`
Move `$` to under the `jews` definition
Make `$` function and ignore `window.$`
Add `$.matches` and `$.closest`
Make `closest` return itself for method chaining
Add `hasClass` to `$`
Make script compatible with `$`

Without 미디오오늘. `$` should support `find` to make it compatible.
chain
i gonna die
Merge pull request #1 from disjukr/jq

tracking master & use prototype for chaining
Replace `find` with selector context

From documentation of jQuery `find` (http://api.jquery.com/find/):
Selector context is implemented with the `.find()` `method;` therefore,
`$( "li.item-ii" ).find( "li" )` is equivalent to
`$( "li", "li.item-ii" )`.
Return empty string if there is no elements

See https://github.com/disjukr/jews/pull/31#issuecomment-55487611.
Make sure `$` has length after initialization
Add `eq` to `$`
Add `forEach` to `$`
Fix invalid selector on 한겨레
Fix bug `querySelectorAll` is `undefined`

When `context` is `$`, first element should be selected as `context`.
Fix invalid selector on 미디어오늘
Fix reporters when the news is written by staff