Change message passing mode
Add background.js
Make message listener
Change to port connection with background.js
Use port connection with background.js
Send changes to background
Small change & divise 'listener zone' for content_script and popup
Use new type of connection
Small fix
Add class BackgroundFlashData + small fix
Add BackgroundFlashData::sendToPopup() & BackgroundFlashData::setPopup() functions + change flashElements var to flashData + make functionnal init request
Set up connection with background.js
Add BackgroundFlashData::clear() & getFlashData() functions + use & fix collision if a old BackgroundFlashData has the same id as a new