Fixed missing ini_get check in the stream transport

The missing ini_get check causes the Joomla\HTTP\Factory::getHTTP returning a transport that isn't working
Added a check in the factory for the case that no transport driver is available
Adjusted code style
Merge pull request #187 from SniperSister/jhttpfix

Fixed missing ini_get check in the stream transport
PHPCS cleanup

Should all errors except in the DI package.

P.S. Whoever wrote the unit tests clearly didn't try that hard to meet the
standards :P
Review README files
Prep for beta3