Reorganized files.

.gitignore

firefox/content.js

firefox/icon.svg

firefox/manifest.part.json

firefox/mutation.js

scripts/build.sh

scripts/makemanifest.py

shared/_locales/en/messages.json

shared/_locales/sv/messages.json

shared/icon.svg

shared/links.js

shared/manifest.part.json

shared/menu.js

shared/popup.js

shared/style.css

thunderbird/_locales/en/messages.json

thunderbird/_locales/sv/messages.json

thunderbird/background.js

thunderbird/common.js

thunderbird/display.js