Automatic synchronization with publicsuffix.org

* Added automatic downlod of effective_tld_names.dat from publicsuffix.org to remove manual action
* Automatically and directly update src/domain_list.js
* Using variable to hold file names to make the code more readable
* Removing unnecessary files
Syncing with publicsuffix.org

* Updating domain_list.js with latest available data
* Storing effective_tld_names.dat as cache. It could be removed on a later stage
Including link to Google Chrome Web Store

to download the most updated version
Updating first line

the first line of the file needs to match rexep
#( Netscape)? HTTP Cookie File