btw, it's possible to apply new context with this construction:

%%%%javascript
block i-jquery, elem core, default: applyCtx({
    block: 'b-page',
    elem: 'js',
    url: '//yandex.st/jquery/1.7.2/jquery.min.js' 
})

and as soon as we have https://github.com/bem/bem-bl/blob/0.3/blocks-common/i-jquery/_version/i-jquery_version.bemhtml
it's possible to change version to anything we need (still we don't need to change it here anyway).