- Include latest changes from gorhill/uBlock/master
- Append the pickerRoot container to document.documentElement instead
of document.body ("body > div" type CSS selectors are more common, so
they could overwrite the extension's styling with higher probability)
- Request localized strings from the background script instead of using
the i18n API in content scripts
- Fuse element-picker.js' message handling into contentscript-end.js', since
only one messaging channel can live at a time in a content script
.jshintrc's otion-set is a personal choice, merely a suggestion.
Beside that, it includes some common globals for specific browsers, so
there's no need to set the globals in every .js file.
In order to force strict coding, "use strict" directive was added into
every .js file.
