[jitsi-dev] show lock button only for moderator


To suppress the lock button for non-moderators (why not, right?), I created a branch and made changes to the index.html, modules/UI/UI.js, modules/UI/toolbars/Toolbar.js. I've never done this before. Is there something I need to do now before issuing a pull request? It seems there's some process (unknowable to me) that merges the changes in the modules into the app.bundle.js.