bring out of band fixes (c5cbf5d, 2999dbe) for Firefox/webext into ma…

…ster

force "slow" path for scriplet injection for the time being (see gorh…

…ill#3526, uBlockOrigin/uAssets#1492)

fix memory leak related to scriptlet injection through StreamFilter

new revision for dev build

update fix for gorhill#3507: look even farther for charset

import translation work from https://crowdin.com/project/ublock

new revision for release

import Kazakh translation work

new revision for emergency fix

new revision for release candidate