* split, regroup, and async'ify files
* consistent window scrolling in scrollToEditor and jumpToPos
* rework waitForSelector and collapsible <details>
* parserlib: fast section extraction, tweaks and speedups
* csslint: "simple-not" rule
* csslint: enable and fix "selector-newline" rule
* blank paint frame workaround for new Chrome
* extract stuff from edit.js and load on demand
* simplify regexpTester::isShown
* move MozDocMapper to sections-util.js
* extract fitSelectBox()
* initialize router earlier
* use helpPopup.close()
* fix autofocus in popups, follow-up to 5bb1b5ef
* clone objects in prefs.get() + cosmetics
* reuse getAll result for INC
* API.styles.*
* API.usercss.*
* API.sync.*
* API.worker.*
* API.updater.*
* simplify db: resolve with result
* remove API.download
* simplify download()
* remove noCode param as it wastes more time/memory on copying
* styleManager: switch style<->data names to reflect their actual contents
* inline method bodies to avoid indirection and enable better autocomplete/hint/jump support in IDE
