Merge pull request #20 from PHP-Chat/master

Merge pull request #19 from PHP-Chat/1.1
non-working alpha release
removed package which was just being tried out
Remove stability type from banner message
rename CSS selector to a generic name
Allow meta sub-domains to be used in config file
Add new beta Português Stack Overflow sub-domain
Add API link to list all Stack Exchange sites
Missing PhpDoc typehints and renamed a variable
Rename JSON cache directory
move cache timestamp to tbody and fix incorrect property
We check if entire response is false not just a property
Merge pull request #21 from KyraD/2.0

Merge changes from fork
Merge pull request #23 from Room-11/2.0

Sync master with 2.0